Skipping under accele.
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From: Moncton canada
Skipping under accele.
I have a GMPP S2. Under hard acceleration i notice sometimes like a skippind feeling. Like the spark wouldn't be happening sometimes, or not enough fuel going to the motor.
Is this hapenning to anyone else?? and is it cause for concern?/ Or could it be the cold canadian winter causing that??
Any help please!!
Is this hapenning to anyone else?? and is it cause for concern?/ Or could it be the cold canadian winter causing that??
Any help please!!
Originally Posted by That Cobalt LT Guy
If its like the motor is hesitating then it could be you traction control.
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Joined: 06-17-06
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From: Peoria, AZ
Originally Posted by USMCFieldMP
SS/SC's don't have Traction control. It happens to me sometimes in 2nd gear. Around 5K rpm it will hesitate... I don't know why though. If that is what you are refering to. Other than that I haven't had any problems.
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From: Canada
GO GET IT REFLASHED!!!!!
i had this problem dude. exactly. wracked my brains for weeks and had them check it over twice, then someone found a new reflash that adresses our exact issue!!!!!
boost surging under heavy accel particularly in 2nd and 3rd......
trust me....my car was an entirely new animal when i got the latest updates.
i had this problem dude. exactly. wracked my brains for weeks and had them check it over twice, then someone found a new reflash that adresses our exact issue!!!!!
boost surging under heavy accel particularly in 2nd and 3rd......
trust me....my car was an entirely new animal when i got the latest updates.
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From: Jacksonville, Florida
Mine does this sometimes when useing a lower octane fuel such as 87, on mine its the computer pulling timing when in senses knock, it feels like a sputter or just freeze of power. When looking at my RPM gauge when this happened it just jumped down then back up immediately..........
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From: Moncton canada
Originally Posted by an0malous
GO GET IT REFLASHED!!!!!
i had this problem dude. exactly. wracked my brains for weeks and had them check it over twice, then someone found a new reflash that adresses our exact issue!!!!!
boost surging under heavy accel particularly in 2nd and 3rd......
trust me....my car was an entirely new animal when i got the latest updates.
i had this problem dude. exactly. wracked my brains for weeks and had them check it over twice, then someone found a new reflash that adresses our exact issue!!!!!
boost surging under heavy accel particularly in 2nd and 3rd......
trust me....my car was an entirely new animal when i got the latest updates.
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From: Marlborough Massachusetts
I have the newest reflash and I get that hesitating around 3-5k rpms.. annoys the hell out of me.. and yea when I just start up my car its at worst regardless of the temperature.. Hopefully I can figure out a way to stop it
Originally Posted by wwwilly
This happens to me in 2nd on the very first startup on a cold morning. Only happens the first time you shift to 2nd. Everytime after that the rest of the day it is fine....Wierd
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From: Marlborough Massachusetts
but for now check your plugs and make sure they are gapped correctly.. I closed my cap to like a .40 and it helped a lot ( Somehow it was opened a lot more.. I think the dealership may have messed with the gap during stage 2 installation no idea)
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From: Marlborough Massachusetts
is it when you just start your car up it seems really bad and bogs and hesitates? and after a while the bogging and hesitating calms down a bit after your engine is warmed up and run for a while and only hesitated before the 3-5k mark.. if yea same problem here
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From: Shaw AFB, Sumter, SC.
Originally Posted by wwwilly
This happens to me in 2nd on the very first startup on a cold morning. Only happens the first time you shift to 2nd. Everytime after that the rest of the day it is fine....Wierd
Mine has the same problem but I think its just because its colder outside. If I just start it up and start going it bogs down hard only on shifting to 2nd. If i let the engine get to around 100 degrees and get going, I still feel it but nowhere near as bad.
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From: Moncton canada
Well I keep my information center thing at engine temp, and i wait till its arounf at least 80C before i push it hard. Regular operating temp is areound the 90ish. And yeah its usually around the 5-6K where it makes that skipping under WOT or hard acceleration
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From: Moncton canada
Also I can be driving normal for an hour and when I WOT it makes that.
But If iam driving hard, then it will almost never make it. And it comes and goes.
I drive 2 stroke motorcross and when you dont drive it hard for a bit, the pluggs get carbonnated. Now I know the pluggs arent carbonated, but it feels the same way.
But If iam driving hard, then it will almost never make it. And it comes and goes.
I drive 2 stroke motorcross and when you dont drive it hard for a bit, the pluggs get carbonnated. Now I know the pluggs arent carbonated, but it feels the same way.
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From: Canada
i dont know if you have the newest flash then.....seriously this only came out like 3 weeks ago. and it 100% completely took this EXACT problem away from my car.
hasnt skipped, hesitated or surged since the day i took it in.
if you havent had a flash done in the last month take it in. trust me on this one
im going to go dig up the proof for you.
hasnt skipped, hesitated or surged since the day i took it in.
if you havent had a flash done in the last month take it in. trust me on this one
im going to go dig up the proof for you.
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From: Canada
First this kit is not a power upgrade but addresses issues with false lean/lean codes that some people are getting after installing the gm kits. It also addresses boost surging that can occur with the original stage kit flash as well as the harsh sluggish 1-2 shift some have experienced.
The false lean/lean issue is that the car THINKS it is running too lean thus pulls timing or dumps fuel to correct the issue but there really is no issue at all. The car will NOT show a CEL for this issue unless specific requirements are met within a certain period of time during the same on cycle so a dealer telling you that the CEL needs to show up is incorrect.
Boost surging occurs in the midrange normally before 4500 rpms and feels like the car is rocking back and forth as if it is trying to move but can't. Normally this is seen in 2nd or 3rd gear during sudden acceleration.
The harsh sluggish 1-2 shift happens under fast accelleration when it would be needed when getting on the highway or freeway to match traffic speed quickly. The shift to 2nd feels much like boost surging except that the car will feel like it is failing to get any gas at all thus the car will not accellerate.
The false lean/lean issue is that the car THINKS it is running too lean thus pulls timing or dumps fuel to correct the issue but there really is no issue at all. The car will NOT show a CEL for this issue unless specific requirements are met within a certain period of time during the same on cycle so a dealer telling you that the CEL needs to show up is incorrect.
Boost surging occurs in the midrange normally before 4500 rpms and feels like the car is rocking back and forth as if it is trying to move but can't. Normally this is seen in 2nd or 3rd gear during sudden acceleration.
The harsh sluggish 1-2 shift happens under fast accelleration when it would be needed when getting on the highway or freeway to match traffic speed quickly. The shift to 2nd feels much like boost surging except that the car will feel like it is failing to get any gas at all thus the car will not accellerate.
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From: Moncton canada
Thanx man, I will call tomorrow for sure!! I'll keep you guys posted. I'll tell them to chek the gap on the pluggs and reflash the computer!! Can i just call and tell them to puot what you highlighted?? Or should they know the new code?
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From: Canada
those codes are for an 06, and i believe they may be different for each year.
but if you ask your dealer for the latest updates for cobalt ss/sc WITH STAGE KIT (this flash is ONLY for staged cobalts) and tell him about those numbers listed above they should know what to look for.
I cannot stress how much of a difference this made with my car.
You will not be dissapointed.
but if you ask your dealer for the latest updates for cobalt ss/sc WITH STAGE KIT (this flash is ONLY for staged cobalts) and tell him about those numbers listed above they should know what to look for.
I cannot stress how much of a difference this made with my car.
You will not be dissapointed.