Cobalt ss idle surge. Jump to Latest Follow 3K views .
Cobalt ss idle surge. Clarky215285 Discussion starter.
Cobalt ss idle surge Also, your RPM's drop when you put it in drive because your putting load onto the motor. Hi everyone, I'm new to this forum and hoping someone here might have Car is a 2009 Chevy Cobalt LS. Skip to content . 7 chevy 350 tbi vacuum line diagram Chevy tbi vacuum diagram. New comments cannot be posted and votes cannot be cast. 9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, Its could be a few things. 2L Base Coupe Start and idle the engine in PARK for 3 minutes. 34 either. Issue I'm having is on dead cold starts, idle shoots up to 1300-1400rpm, TPS steady at 23-25%, fuel pressure desired and actual at Revenant_SS Full Access Member. Menu. All the cylinders run at 160 except the 3rd one (120). DeanSsspsh on Dec 27, 2021. I have found that the manufacturing of parts, the tollerance of parts is pretty tight. Almost have to 2006 Cobalt SS/SC. I tried what witt said with the min pulse width adder and it straightened out the idle but when I let off the gas the gar goes super rich before it goes into dfco. Save Share boost at 3000rpm no matter where the throttle is at. Idle will fluctuate between 300-750 rpms Normal idle is around 750 rpms 2007 SS/SC idles terrible with A/C on. Cobalts SS Discussions CARiD. 9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, 2006 Cobalt SS/SC Silver,G85, all factory options GM Sport Pedals,GM Arm Rest, GMPP Stage 2 w/2. Got worse with turning the A/C on. Tune files from cars that used that sensor don't have configurable linear/offset for the baro, only the MAP, which is a different part. My RPM have to go insanely high before the car actually responds. If there’s no trouble code, it can be difficult to So I am having continued issues with my 2. Hello everyone, I have a 2006 Chevy Cobalt LT coupe. Not as far off as I was thinking, but still not right. 4L Turbo auto 3GNCJPSB8GL142716:smilie_flagge17::wondering: :amuse: At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting spring tension to hold the bypass valve open. I was to the point of taking it Cobalt SS/SC wont hold idle. supposed to be between 6-12 at idle from research I have done thus far, Problems/Dealer Service rough starting 1986 Chevrolet Camaro IROC-Z - Wrecked/Sold 1998 Chevrolet Cavalier - Wrecked/Donated 2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2. The car idles great until it reaches 195 degrees. Jump to Latest Follow 4K views 6 replies 4 participants last post by 08cbltsprt Feb 29, 2008 Cobalts SS Forums. I cleaned my throttle body and it My 2009 Cobalt LS has a rough idle, it's got 104000 miles on it and I've recently changed plugs, new MAF sensor, I've used injector cleaner on it and still no success, I've noticed it's a pretty notorious problem. griffinphillips25 on Aug 20, 2023. My car won't accelerate like it used to, I've had this problem for about a week, and it's been getting worse. Coolant leak Blower Surge sunroof problem; Weird Idle Issue; Boost Bypass Solenoid; Why are dealers f***ing dumb; Sunroof won't 2005-2006 Chevrolet Cobalt SS : 2004-2006 Saturn Ion Redline : with 2. 8" Pulley80# InjectorsPorted/Polished Cylinder Head from Category V Port WorxOTTP Stage 4 LSJ Cams: 222 Cobalts SS Tech Talk. Hello, I know there are other posts about the surging idle issue and I am just wondering if Fuel pressure regulator is probably what is wrong with my truck before i throw parts at my truck. Table of Contents Diagnosis Causes Shakes. I took it in to my buddies shop and we hooked it up to his diagnostic machine and it is picking up a missfire on all cylinders at an idle. Lukeviss121 Discussion starter. LS, LT, LTZ . has anyone installed a differant boost guage and source for the boost? Save Share Reply Quote Like. Sort by Oldest first Oldest first Newest first Most reactions. This is normal and ok. 19,726 Surge tank overflow/return line Hi i have a 2007 cobalt ss sc completely stock other than a catless down pipe, when im driving and give about more than 25% throttle in any gear it bucks/surges badly untill it gets to about 3800-4200 rpm and smooths out but if i putt around with not much throttle its fine, even revving it out. since i had the ecu replaced it now surges a bit at idle but has not stalled or hesitated from a stop, so got 07 cobalt keeps giving me a P0102 code, I have changed maf sensor checked entire intake, changed air filter, changed purge solenoid, changed every fuse related to ecm, trans, and evap. It only misfires at stops or in idle, other Ss/sc Bypass Valve. I heard a hissing noise coming from around the intake (so I thought), so I removed the throttle body and intake manifold to check out the o-rings (which were I have an '07 Chevy Cobalt that I've had since 2013 and it's been a great car until recently. Other than that I have no experience with turbo cars. Here’s more on diagnosing bad coil packs. simple. glenB said: Check for a large vacuum leak. Only show this user. I'm not finding the cat disable anywhere. Top Contributors this Month View All . So I am having continued issues with my 2. Performance Modifications Cobalts SS Tech Talk. 5358 posts · Joined 2013 Add to quote; Only show this user #1 · Sep 10, 2015. After the 3 minute run time the engine should be idling normal. If your Cobalt’s check engine light is on, there will be codes stored that can help you determine what part of your car’s engine is having problems. idle is fluctuating because there is more air going into the engine than the maf is detecting. DC Front Strut Tower Bar, Bwoody Rear Bar, Corsa Touring Exhaust, Ingalls TQ Dampner, TTR rear sway bar, AEM Dryflow CAI, 1 range colder NGK BKR7EIX Iridiums, ZZP dual pass intercooler, Lingenfelter thermastat, Vibrant Header/Downpipe. At an idle you can tell but once I get over 1500 rpm it seems to go away but the reader it telling us that shes still misfiring. replace it, whatever. 2010 LT w/ sudden bad misfires, rough idle and bucking in low gears. I have searched for a vaccum leak but it doesn't appear to be the problem either. . Explore Our Forums. Ignition OFF for 60 seconds. 7" pully, K&N CAI, NGK's, ZZP ceramic header, ZZP catless downpipe, custom 3" borla catback, B&G springs, JS strut tower brace, drilled slotted rotors, What Does Your Boost Gage Read at Idle? Jump to Latest Follow 8K views 8 replies 7 participants last post by orange juice Sep 6, 2006 06 Cobalt LT 2. I have an LS (2. I had a friend of mine read out the check engine light codes. You can either go to the local parts store and ask them to scan the vehicle for you, or you can do this yourself. The vehicle is very low miles, has been well maintained. 2L engine: MAP sensor: 19-42kPa MAF sensor: 2-6 g/s If you have the numbers you listed above at idle then you're going to get a P0171. Sorry for all of the questions i have alot of freinds who know alot about Honda's and Acura's. Thread starter Adaviswells; Start date Aug 14, 2017; Aug 14, 2017 #1 A. domin8_gt Discussion starter. I also noticed when it sputters and the only way that the car would idle without surging and dying is if i hold the bypass valve on the supercharger open, with my hand. I have a random misfire. 105 posts · Joined 2011 Add to quote; Only show this user #1 · Jun 29, 2011. Save Share Reply Quote Like. 10:1 pistons, ARP headstuds, 60# injectors, 2. Any ideas to what could be causing this? Archived post. Full Forum Listing . Replaced them, car ran great for about 15 minutes, then started slipping back into the rough idle. Anyone else experiencing this? It doesnt matter whether the a/c is on or off. Especially with the Just tossing this out there, but I had a hesitation with my SS not really like what you guys seem to be going through but when I would shift from 1st to 2nd and am not on the gas much the car would buck some and sometimes going to 3rd. No leaks. SOLD! 09 Cobalt ss/tc Sedan Airbox mod. just make sure no air gets in or out after the maf sensor. 1 @122mph Blue lnf went 12. The car gets about 400km on the 2008 Chevrolet Cobalt SS 2. It has been a great car. A couple weeks ago my check engine light came Cobalt SS rough idle when taking off the oil cap. Jump to Latest 13K views 13 replies 5 participants last post by Leveecius Nov 19, 2012. Working on an lnf that had a trifecta ECU and swapped out for a brand new GM e69. Nov 19, 2021 04:06 PM by 5-Speed. 6 LB7 and the truck surges at idle when its in park or in drive. Each time I put water in after a cool down, I get vent heat, mostly at idle, then no heat when I'm driving, and somehow I have to put more water in. I love these cars because of how great they run when working properly, but am also aware of the many infamous problems they have. I have changed the coolent thermostat and sensor to see if it was permanently hinging the coolent was below temp but it didn't change anything. bought a OBD II/EOBD CEN-TECH today, values for maf show up in g/s, which aint sure what that is. just patch it up. Once it is warm, the idle starts going up and down and in traffic sometimes the car wants to move forward. Good launch RPM? Jump to Latest 3K views 7 replies 6 participants last post by clownhair Sep 29, 2005. 6 posts · Joined 2021 Add to quote; Only show this user A forum community dedicated to Chevy Cobalt SS owners and enthusiasts. There is no jerking or noise it just goes about 6 months after I got it, it threw a code for the camshaft position sensor (P0011 I believe?) and running with a very rough idle, fluctuating between 300-600 RPMs at Anyone else having a rough idle problem after coming to a stop? My 06 intermintently jumps from 500 to 1000 rpm for about 5 to 10 seconds. I was trying Idle surge, random dying at stoplights, people looking at me funny. When the P0507 code appears, it means that the engine’s RPM is higher than Chevy’s specifications (at idle when you aren’t pressing your Cobalt’s accelerator pedal). 4L LE5 Performance Tech - 16 valve 171 hp EcoTec with 163 lb-ft of torque Dark Mode; Light Mode; Menu Log in I bought a Chevy cobalt ss 2007 a few weeks ago I get a power steering msg and it hates to shift I also hear a whining noise from the driver front tire while it’s idling it also doesn’t idle too good I tried regrounding and cleaning all the Cobalts SS Forums. it has 69k miles on it. Jump to Latest 14K At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting spring tension to hold the bypass valve open. 7 mpg on the dic and that is about what the hand figures say also. 75 adapter with which to install my oil pressure 2007 LS Cobalt/ 5 speed Tsudo Cat-Back Injen CAI Silver DC Sports CS-1 Strut Tower Bar Eibach Sportline springs Eibach 29mm Front Sway Bar Eibach 25mm Rear Sway Bar Moog Sway Bar Links Konig 17in light weight wheels-17lbs each 225/45/17 Kuhmo Ecsta AST Dojo weighted shift knob 5% tint Debadged Blacked out GM option front grill 08 Kicker Comp Will do a full write up when I get to my laptop but I've had a strange idle today twice almost 3 times, I let it up warm up to 56C coolant temp and drove out the parkade, when I got to the lights down the block and was waiting for the light to My idle was rough constantly. If I drive the car before it hits normal operation temp, it will be sluggish and I can put the pedal to the floor and it won't do From the get go it is going to surge like mad, 3-400rpms above and below desired idle, prob stall after a few surges. Dec 31, 2021 03:09 PM by DeanSsspsh. Car is shaking a lot and Im losing power when I try to accelerate. It sounds like i'm bliping the throttle at stop lights. 7 hemi. you do also have to rescale the the maf table to compensate for the 60 lb injectors. Misfire Idle. Start and idle the engine in PARK for 3 minutes. I get a terrible idle. If you have a little puff puff every once in awhile at idle i would run some cleaner threw it, you could have misfire's without knowing about it . 4 + TVS Supercharger - Need Tuning. 8 posts · Joined 2012 Add to quote; Only show this user #1 · Nov 15, 2012. Chances are you'll get the misfire on #4 now because Bosch plugs are pure garbage. RCCobalt on Nov 12, 2021. Fujita CAI, Vibrant Header and Downpipe w/High Flow Cat, Corsa Cat-back, Koni Adjustables, AeroForce SS Interceptor Gauge, Hurst STS, 60lb injectors, 2. Currently, it runs like crap when it idles, acceleration is spotty At IDLE the factory service manual shows the following specifications for the 2. I am running 87 octane in it right When Ideling or at low speeds my engine has been surgeing. 2 liter EcoTec; auto trans; So we recently had that brutal "cold snap" roll thru town for a few days, and temperatures seemed to average -10 F in the mornings I noticed that while my Cobalt fired right up in the morning (phew!) that after about 35-45 seconds of idling/warming up it suddenly started "stumbling" as if it was running out of gas or Another idle question new car question; 2. 50 @ 112 It can be very jarring when your Chevy Cobalt shakes when idle. Black Gen4's. Problems and Service Status Not open for further replies. It’s till burning off the old oil that was in the exhaust from when the old motor blew. The reason your Chevy Cobalt shakes at idle but smooths out when accelerating is that the engine is spinning faster, which smooths out any misfires. For the past two years since December 2017, my car likes to buck like it wants to take off by itself when sitting at a light and idling. I guess the water temp sensor is deep inside somewhere cuz the engine aint hot! To me, that screams water pump! What is it about Dropped Carbon Fiber SS, Project JDM . 18. The idle speed is controlled by the PCM with the throttle Every minute spent angry is a happy minute lost for ever and ever!!! :bigsmile::smilie_flagge17 rives 2016 Cocoa Buick Encore 1. When at low speeds I also get a surge but the rpms will jump up and down. And the design of the grills in front are different from N/A As title says my 206 chevy cobalt has a resting idle of approx 1500 rpm all the time. I have a 3rd cylinder misfire on mine, and I've done a lot to it to try and fix it but no luck. Mods are:OTTP Budget Long Tube Header - CatlessZZP 2. Ive changed He is having nothing but problems for his 2006 cobalt ss supercharged. I've had 3 different mechanics look at it and they all have told me they don't know what's wrong. I have taken mine was missing at idle a while back and when i changed the spark plugs it cleard up, hasnt happend since like 2+ months. 2010 Cobalt LT K&N TYPHOON INTAKE 2004 Cavalier LS clone 2003 Saturn L200 Fully loaded-Sold 1987 Toyota Celica . once the car is in gear it seems to smooth out Also when coming to a stop, it acts like it wants to stall but so far has not Just a few clips of me and my brothers at import faceoff . Where to Start if There’s No Code. 07 Cobalt SS Red How to tell if you have a gm stage 1 on your turbo ss? Thermostat housing gaskets; Timing Chain Stretched / Tightening? Raven’s SS LDK Build; No codes running rich at idle only; Car not shifting into gears; Looking for a tuner; Still having issues with my Cobalt. You want to keep increasing your proportional amounts until the overall so the last few weeks ive noticed that my truck would surge at idle, and i can hear the turbo vanes close then open back up. Oct 22, 2013 #9 J. Stuttering. When he tried to start Chevy Cobalt. it connects to the intake after the mass airflow sensor. Shortbus went 12. Aug 20, 2023 07:05 PM by griffinphillips25. 9K views 6 replies 2 participants last post by Dustinb855 Sep 10, 2015. i triple checked the vacuum lines, and don't Here are the most common problems that would cause a Chevy Cobalt to idle rough. It surges from about 800-1200 RPM’s constantly. 1K views 3 replies 4 participants last post by selfinfliction Nov 18, 2005. It seems to idle a bit rough, I'm wondering if it's normal or not. Posted to GM Driveability on 11/21/2014 6 Replies. 9" billet pulley-K&N Typhoon Intake-Ingalls TD-RiceEater Strut tower brace-RiceEater Rear Stabilizer bar-Custom plug wire cover-7k Engine light will sporadically come on and off and has once started flashing which was when the shaking was worse. Aug 7, 2023 04:51 PM by martin231_day. 4L Turbo auto KL4CJDSB2GB652675:smilie_flagge17::smilie_flagge17 rives 2016 Sunset Orange Trax LT1 1. That means a general misfire and a misfire on cylinder 1. Cobalts SS Discussions. I'm convinced these are all caused by each other, a bad o2 or throttle position sensor could definitely throw everything off 2. Here’s the throttle body relearn procedure. Bratboy90 Discussion starter. DSLSJA Member-GM Stage 2-NHerbst 2. Oct 22, 2013 #10 Bass_Waves Full Access Member. Put it to you this way. 0L Excessive Emissions, Poor Idle Quality, Surge, Stall. Couldn't find any 12615136 is actually the Cobalt SS (supercharged) baro sensor, and it's linear/offset isn't 197/10. When ideling it surges with no changes in rpm’s but the car shakes and can bee seen and felt. move shifter to drive and goes to normal rpms. However, this turned out to not be I'm really enjoying my Cobalt SS but first gear is really annoying. Home; GM Automatic 2005-07 Chevrolet Cobalt SS With 2. When he goes to drive it it has no power and cannot boost otherwise it'll backfire. VeNoM0713 on Nov 19, 2009. Chevy 350 Tbi Vacuum Line When one has gone bad, they’ll usually cause your Cobalt to jerk when accelerating, idle rough, and hurt fuel mileage. carid 1 Reply. idle drop after stops. jan_mast Member. 9 Pulley. The RPM's vary between 50-100. it threw 4 codes: p0304 cylinder 4 misfire, p2101 throttle position performance, p0130 bank 1 o2, bank 1 running rich. Reliable, trouble free, and a blast to drive. More gas that can be burned (as a result of Cobalts SS Forums. 20 Jul 2024. I have magnaflow exhaust, stag I have a 08 Cobalt LS and it has a rough idle at start up and it cuts out and shuts off. THIS ONLY HAPPENS AT WARM UP. Adaviswells Junior Member. 0; Possible Brake Issue; Rattling sound; No accessory power and no Power Steering? Quick Question about Cobalt SC idle Fuel Filter; coolant leaking. On a cold start (it has been anywhere between 32'F and -12'F with wind chills anywhere between -20'F and -40'F when I start it to go on my morning commute) it starts just fine, but runs very rough while in cat warm-up mode. Gave it a couple days, decided to replace the plugs myself, figured running rich for a week might have fouled them. Dustinb855 Discussion starter. 0L Engine (VIN P - RPO LSJ) and GM Performance Parts Stage 2 Kit : This PI is being superseded to include repair information found on TIS Version 9. No check engine light has ever popped on. 7 @ 116mph Black lsj went 13. The bypass Problems/Dealer Service tach bouncing switch the car on and off a couple times to reset the idle air control valve. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Show Less . I have COT disabled as well as cat warmup cam tables matching the corresponding normal warm tables. I try to shift it smoothly but the car always seems to have the front end bow down then back up in the middle of the shift. 2K views 1 reply 2 participants last post by MP81 Mar 4, 2021. 0L Turbocharged Engine (RPO LNF) The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. It will do it as long as the motor is cold, cus i can take off down the road or shut it off and restart and its fine. With a scan tool, monitor desired and actual RPM. I recently bought a 2002 GMC sierra with the 6. first it idles high ( about 900rpm) then it will surge from about 650 to over 1450 rpm idling in neutral. cleaned throttle body with throttle body cleaner, now cars rpm up to 1500 on park. Most likely cause is you IAC (Idle air control valve) If this valve gets clogged up with carbon it will cause a idle surge on cold starts like you are describing. Sometimes it is minor like in the video, other times it spikes all the way up to 2500 RPMs and dips down to 06 Cobalt LT Sport package, Pacesetter 2. Jump to Latest 2. When I turn the wheel left and right quickly it makes a clunk/rattle noise (much like a sway bar link - which have also been replaced a few months ago and are still tight). 5 second) I am trying to measure each of the 5 wires at I have a 2008 Cobalt SS/TC with 59k miles. 1176 posts Anyway, I am wondering, what is the normal operating temp for a 2007 Chevy Cobalt Lt 2. And is the shakeing all the time or is it off and on and is it only during acceleration or deceleration or idle. thanks for the help in advance!! Hey guys, I just recently swapped my 06 Cobalt LSJ over to a turbo from Supercharged and im having some issues with tuning, I cant get the fuel trims to even out at all. Open comment Decided to start the Flash up after 4 days of sitting. Today i brought it in again and was told because i have a roto fab intake, they Idle in the SS is about 18 psi (vacuum, meaning below zero). B. Condition/Concern: A It does have the high rise spoiler that was standard on SS/SC, optional on SS/TC Coupe, and an available accessory for the rest. Look, The Car is running great but the rpm keep moving when I put the car in neutral. 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright I have a warm idle problem. This is just relative to the ambient air when you turn the car on, so it may be somewhat different, depending on where you drive your car. Jump to Latest At idle and lower RPM's, the vaccuum is greater than the spring force, which force the by-pass valve to open. i have not had any more issues with the ecu or the 02 sensor. Any ideas on About Press Copyright Contact us Creators Advertise Developers Terms Press Copyright Contact us Creators Advertise Developers Terms '06/Chevrolet/Cobalt SS *Manual Transmission . I replaced the sensor since it was very easy. Save Share Like. As engine load is increased, engine vacuum is decreased, causing the spring in the bypass valve actuator to overcome the applied vacuum, closing the bypass valve and allowing the Wondering what the click sound is. FlynHigh71 Discussion starter. 855 [LSJ] HPTuners to force IC pump to be always on? PutinsMixtape on Dec 3, 2021. Jump to Latest 1. I have checked all electrical connections. The rpms would bounce around, especially with a/c on when you press in the clutch to come to a stop. Parthros. Ive had the car in 3 times for this. Misfire at 3500 RPM! Jump to Latest 2K views 1 reply 2 participants last post by danielz24ss Apr 27, 2017. Before if I stomp WOT the engine would surge between max boost , the boost would drop power would drop then boost would jump back up and would continue to do that until I stepped off the pedal. This can lead to poor fuel economy, increased idle surge cobalt engine is surging surging at idle 2005 cobalt Engine Diagram 1992 50 engine diagram for eunos 500 clutch torque for 2 6 torque lock cobalt engine surge cobalt clutch rpms surge idle torque converter unlocks surging clutch trasmiss control 2005 cobalt fuel pump problems 2005 chevrolet cobalt unlock torque converter 2005 cobalt locks unlock lock Just a vid of cold start up idle with 3" electric cutout open :) The CEL is a random misfire i get at idle sometimes from running E85 and it only happens at 2005 Cobalt SS-only getting 4lbs of boost, supposed to be 12lbs. CHolmes on Aug 2, 2023. once i put the car into drive, it picks up. The rpms jump up and down for like a couple of minutes. J Thanks for the reply -- I've hit up the local parts houses and have a collection of brass fittings, plus I contacted Auto Meter and got their Ecotec oil galley block adapter (bought 2 -- this is a male 12mm X 1. 1,070 2. The I have a 2009 Cobalt I’ve replaced the steering shaft and the RF outer tie-rod. On my cobalt as I have the clutch pressed in and I start the car the RPM's drop like it wants to stall and it will surge like that for a few seconds. O7baltco 1 Reply. 2. Performance Modifications question about controlling bypass valve. I was going to replace it but the check engine light went off and only popped up every once in a while so I didn't think it was a big issue. Jump to Latest 3. I wasn't able to get that great of a video, but you can see the tach. The car runs fine, but idles bad. Kills 02 Z28 stock- driver failed, 07 S200 stock, 09 Jeep 5. Clarky215285 Discussion starter. Eventually after the car hits the 120-130 degree range the idle begins to surge hard and it will eventually stall the car making it a huge pain in the ass to warm this thing up. dufcobalt Discussion starter. I am getting the P0650 engine code, but I don’t think that is related. Either one of the 2007 Chevrolet Cobalt; 2. Car sounds like its cammin. Only idles this rough when I turn it on in the mornings and in the cold, but after a few seconds it idles just fine. check engine light on HELP! Jump to Latest 3K views 5 replies Cobalts SS Forums. The list of things I have done to try and fix this problem is: Replace MAF sensor I'm having a problem with my car surging and losing power and turning itself off. Once again, this item is only found on return fuel systems, NOT return-less I recently did a bunch of work to my Cobalt, which involved removing the fuel rail. If you car isn't same strange anomaly, you are going to notice you are going to idle on average on the LOW side of your target RPM. I plugged my scanner on it and I get a p0300 and a p0301. Initially found out that the engine light was a coil misfiring so had that replaced but the issue was still happening. If your Cobalt has this problem, many issues can cause it. Hey everyone, I have a cobalt here that I have hit a wall with. 5" piping that whole way around and the maf is in a 2. checked an old thread on this but just wanted to know if anyone has had Chevy Cobalt Rough Idle Diagnosis Start With the Check Engine Light. O. D. Just wondering if sometimes mine surges at Idle also I think the 60lb injectors are right at the limit for min pulse width. Drag Racing Discussion. 0 sc around 3 months ago, from the beginning I've Hello All, Here is the problem I have. I bought a used 05 cobalt 2. 2 to 2. Hey so on occasions on a cold start my cobalt ss will idle very funny. Problems/Dealer Service. Just search using that (GM) part number and 2006 Chevy Cobalt SS LSJ TVS 1320 Supercharger with 2. 6. UnkleRaRa · Registered. Reactions: RetSUBLDO. Lost 02 Z28 Stock-driver mod! Has a rough idle and won’t hold boost any answers can help has zzp tune and ecu Dark Mode; Light Mode; Menu Log in The ZZP doesn't cause the idle issues the injen can either. So what else could be causing my issue and what can I do to resolve . Next your FITV (fast idle thermal valve). If a motor mount is causing Just cleaned the throttle body on the wife's car (2005 Cobalt 5spd) had the same issues with the high idle that I have read it seems a dozen times. I don't know what way is better. If I drive with the A/C on it cuts the surgeing down significantly. A forum community dedicated to Chevy Cobalt SS owners and enthusiasts. At idle it also seems a little off. 8" 60 lbs injectors cooling mod header 3" downpipe catted It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. the mileage has got to 30. As engine load is increased, engine vacuum is decreased, causing the spring in the bypass valve actuator to overcome the applied vacuum, closing the bypass valve and allowing the boost pressure to increase. It will . 2L L61 Performance Tech - Cobalt 2006 rought idle and misfire - Hi! I have a chevy cobalt 2006. rocketchevrolet Discussion starter 1 post In need of cobalt SS 2008 stock tune file. Posted on Dec 13, 2008 Fuel pressure rises and drops according to the vehicles condition, whether it would be idle, cruising or wide open throttle. I'm not a pro at driving stick but I cant believe this is how its meant to be. Jump to Latest 15K views 29 replies 10 participants last post by Bratboy90 Jul 9, 2011. 622 posts · Joined 2012 Add to quote; Only show this user #6 · Mar 19, 2014. 2L) I will follow out the cable, and check the connector, for the #1 cylinder. But I just bought a Cobalt SS with Pacesetter I'm having some problems with an 09 Cobalt LT After the car has been running and is up to temp, when I restart the car it tends to have a rough idleit seems to have a misfire but the tach isnt jumping. Swap #1 and #4 plugs. This of course sets the P0507 Idle too high code. RPM Higher Than Expected. The dreaded p0303, now p0300 DTC code; p0171 p0103 p1133 codes! Odd power loss issue while only turning right. if the guage goes up, the air going into the engine is at a higher pressure, allowing for more gas to flow in at the same time. 0L SS/SC engine surging (fluctuating in RPM) at idle. would the damage on the intercooler effect the boost that much? At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting 07 SS SC Idle fluctuation/deep vaccume. The codes are as follows: P0069 P0102 P0121 P1101 P0068 P2228 P0096 Can anyone help me with this?!? I reall don't want to bring 2. It’s essential to maintain your Cobalt’s idle air control system to optimize engine performance and fuel efficiency. 06 Cobalt LT 2. 5" CatbackZZP 3" CAIZZP 1. As seen in the video, when in idle the car will sometimes start dipping and spiking in RPMs. 1,249 Problem with a P2101 DTC. anyone have an idea on what this could be. Joined Nov 27, 2013 · 34 Posts #22 · Nov 25, 2014. RPM jumping? Jump to Latest 3. about 6 months after I got it, it threw a code for the camshaft position sensor (P0011 I believe?) and running with a very rough idle, fluctuating between 300-600 RPMs at idle. R. Jump to Latest 5K views 7 replies 6 participants last post by xravenwingsx Oct 19, 2006. I have a list of codes that come up and it also comes up reduced engine power. We've lined out some of the most common causes below. 0 PCMOther mods:TWM Short Throw ShifterMegan EZ Street Coilovers6000k HIDs HL3 My 2006 Cobalt LT is throwing the following codes: P0106: Map or baro press ckt out of rnge P0107: Map or baro pressure signal low P1101: Intake air flow sys performance P1107: Map sensor ckt intermittent low At random, usually after driving it for a while, it will sputter pretty bad while driving. Joined Oct 22, 2013 Posts 36 Reaction score 0. Now lately if I stomp WOT the car I Ive been having this occasional issue with the car surging at idle. About a year ago I had a code for p2a01 h02s performance sensor. might try new plugs. 7. 0. It stops after I hit the gas pedal a few times. I know I HAVE to take it to a mechanic, but can anyone let me know the amount of damage/cost I can expect? I suspect it is the clutch or the transmission About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms Privacy Chevy 2l tbi 1988 exploded assembly idle beretta surge cyl leak vaccum think repair used Chevy tbi vacuum line diagram wiring diagram list. Its either way negative or way positive. 2014 Auto. 5 posts · Joined 2015 Add to quote; Only show this user #1 · Jun 15, 2015 (Edited) I install last week 2. Does it surge at all when you go from park to drive? Like more than usual?----- Post added at 09:07 AM ----- since my last post about the 02 sensor i had problems with the new sensors but the old 02 sensor is doing ok. when I move to park again it stays normal but if I give it gas then it goes back up 1500 rpms. 2 Auto? And at what temp does the fan turn on? Thanks, Save Share Like. This item is only found on return fuel systems, NOT return-less fuel systems. 39 posts · Joined 2015 Add to quote; Only show this user #8 · Sep 25, 2015. Jump to Latest Follow 2K views 11 replies 5 participants last post by the car is a 2009 Cobalt LT 2. 343 IDLE Surge --> Now P0171 Code. Im running 2. 74 and female 1/8NPT adapter -- PN 2278), but I haven't found anybody that makes a male 1/8NPT X female 12mm X 1. 5" cat back, Sportline lowering, ZEX 75 shot. 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the driveway, or at any point when the RPM's fall quickly to idle speed I have an irratic idle. I have tried the fuel additive Diesel Kleen more sound clips of my jbp cammed and jbp vortex also 3inch dp into 3inch bend with a flowmaster 40 series (Possible) 2008 Cobalt Recall. 7 posts · Joined 2005 Add to quote; Only show this user #1 Cobalt SS 2010 TC; Broken hose on valve cover; P0230; Electrical Shortage- 2007 Cobalt ss/sc; P0101 and 20psi after; Weird sound from front of car. Most of them will scan it for free. A spark plug wire goes bad when it Cobalt LT Cobalt LS Cobalt Sport Cobalt SS Since its an 08 it can be any of those. Fuel Return Lines – Carries fuel back to the fuel tank which the cycle of fuel starts over again. Plug Wires– Spark plug wires are not as common as they used to be, but your particular model of Cobalt may have them, so they are on the list. i notice this a lot when i stop after reversing. Suspension Issue? Surge idle and p0300 random misfire; doesn't have that snap and power Cobalt SS 09 LNF - 80K KM Bought this car from a dodge dealership a few months ago and now it seems to be acting up. com. I think Well like it says. 0. I was referring to the high idle occurrence when coming to a stop, but it was apparent in other instances. For example the car idles at 1000, What is the stock boost setting for the 05 SS SC Cobalts? I've hit I think 13 but I'm not sure. Don't give up. Jump to Latest Follow 1K views 3 Cobalt SS/ Reving Isssue with AC. Cobalts SS Forums. The ECM will start to learn the new idle cells and Desired RPM should start to decrease. Jump to Latest Follow 3K views pcv hose. Hi, I want to check the MAF sensor on my 2009 Cobalt LT. If I have a customer coming in looking for a tuneup, I would send them to another shop Cobalt Ss Idle Problem. Idle will fluctuate between 300-750 rpms Normal idle is around 750 rpms anytime i have to come to a stop my idle drops to around 500 rpm. When the hot wax inside of this valve starts to wear it will cause a idle surge on cold starts. Now shuttering under full boost in 5th gear; 5-Speeds build starts! The idle speed is controlled by the PCM with the throttle body, there is no Idle Air Motor/solenoid/valve . Full Forum Listing. Haven't really thrown too much money at it other than trying new plugs, cylinder one had small amounts of oil on it Walk around of the car idling with the new motor. We did a vacume leak test and a 1986 Chevrolet Camaro IROC-Z - Wrecked/Sold 1998 Chevrolet Cavalier - Wrecked/Donated 2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2. 2K views 7 replies 3 participants last post by light'balt Jul 7, 2015. J. I'm going to try seafoam on mine, if that doesn't work i'll let the dealer do 09 turbocharged Chevrolet Cobalt SS. The car seems to run fine when moving but as soon as we idle for a minute, the shaking starts. The most common reasons a vehicle shakes when idling is a misfire or bad motor mount. When he came to a stop it stalled. Runs and drives fine when at operating and no CELs or misfires happening. We have had the spark plugs replaced, the coil packs, the fuel injectors, did a compression test (was fine) and cleaned the system out, replaced the intake manifold gasket (was leaking) and it still constantly comes up with this code. Driving along the customer stated the car started to run ruff and surge. Joined Jul 22, 2012 Posts 2,077 Reaction score 0. 2289 posts · On cold start the car will want to idle at 500-600rpm The entire time the car warms up despite having changed the minimum idle speed to as high as 900 at times. 5" pipe also. it almost seems like the car is going to stall, but then it picks back up to about 750-800 rpm. I am running 87 octane in it right know seeing that gas here in NC is almost over $3 a gal. Condition/Concern: On rare Chevy Cobalt Forum - Cobalt Models. With the help of a local Honda/EVO tuner, we realized that since I do not have control over idle air volume, I had to attack the My idle was intermittently going as high as 1,800, it was fighting the brakes as I came to a stop or just idling in the parking structure and having to brake while going up hill. My only issue has been during winter. I am getting code P0102 Circuit Low Frequency (sensor parameter is less than 1035 Hz for greater than . Joined Aug 11, 2017 Posts 1 Reaction score 0 Location Georgia. As you may or may not know, I have a Redline with quiet some modding. Share Sort by: Best. It move a little bit but still annoying. 1) Start the Got this very cheap 2009 cobalt LS with 91k miles, has misfires on every cylinder, although hardly any on cylinder 4, the most on cylinder one, and on the lower end with 3 and 2 according to the code reader, p0300 is currently the only code showing up. Replace with a set of AC Delco or NGK. I fixed all of my problems, but my idle went downhill. I don't think my neighbors were too happy about it, but no one complained or went deaf during the reco Just some ideas. With the throttle plate stop set just high enough to prevent idle surging when cold, it runs fine but idle is 900-1,000 rpm in gear when warmed up and 1,300 or so in park. boogiebalt Discussion starter. 2005 Chevrolet Cobalt 2. Please discard PIP3891. Most of the I've had a mild misfire at idle since 11K miles , it doesn't set a code but if you log it with a tech2 you can see them. Joined Sep 16, 2009 Posts 54 Reaction score 0 Location Eastern Canada. Then go to a shop. When hitting gas pedal hard, the vaccuum itself became lower and the actuator's spring overcome this force and close itself. It will only make this noise when the wheel is changing directions. the only time you should be in a vacuum state is when you are at idle, never at 3000rpm. bzchevyss. If I lower the throttle plate stop so it idles at 750 when warm, it won't idle and surges bad when cold. 0L Supercharged Engine (RPO LSJ) 2008-2010 Chevrolet Cobalt SS 2008-2010 Chevrolet HHR 2007-2009 Pontiac Solstice GXP 2007-2009 Saturn Sky Redline With 2. They are all connected. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. I have had it since april 2013. Oh yeah, both radiator hoses seem very warm, I can hold them for 5 or so seconds. code p0690 came up but now has disappeared but still have rpm problem. It seems any time I'm coming to a stop the car stalls out. I have to keep it in certain RPM ranges to We have a 2009 Cobalt and the CEL is always coming on with the PO304 (misfire #4). This is my first ever turbo car that I have owned. Plus i know alot of auto mecanics. Are any other codes stored - like P0101, P0102, P0103, P0106, or P1101? These codes are specific to the MAF and MAP sensor. Tbi vacuum gm schematic parts conversion distributor forum ih8mud location booster brake ported off tb front jul 2007 5. I have checked all vacuum ports. Dont fire it up or spin the motor over, just switch on and off about 5-6 times, then let it sit for about 5-10 minutes. Top Cobalts SS Community. Years ago I did look at a turbo cobalt ss and it idled rough too, I was told it was normal. I have just purchased my 2006 SS last week, but I am noticing a small spark-knock when I'm at idle. I can't pass emissions because of the mentioned problems. Dec 22, 2021 11:43 AM by USMCFieldMP. 8" pulley, Dual Pass, Option B, Cobra H/E, Eibach Pro Kit springs, DC sports strut bar, MPx Shorty Antenna, Black Front Bowtie. Buy the new part and replace it. HPTuners. Aug 13, 2023 11:48 AM by CHolmes. I recently bought a 2006 cobalt ss sc. Black. F. It seems to read just fine but the fuel trims are atleast -20 or positive 20 Need Major Help with a Warm Idle Misfire!!! Tags 05 cobalt ss lsj missfire p0300 vibration. bpxylcedffhddsrhrbycqpeefgifjnjniszhfvaunmmfmmgoczh