ok, sometimes when i blip the gas pedal to about 2-3k rpms, it drops to about 300 or so rpms, like its about to die, then catches itself. is this a common problem on 00-02 s/c z's? could it be a minor vac leak or something? or did the dealer not do the reflash right? or something else? thanks guys



2000 Camaro V6.
| SLP Loudmouth | CAI Intake | HID's |

mine does exactly the same thing....
has since the day it was installed. not too worried about it

also if you watch an a/f gauge it goes way lean when this happens, then jumps back. my car has also stalled from this a time or two, (coming out of reverse quickly) i just figure they have it go lean quick like that for emmisions purposes. lemme know if you find out differently....Patrick

Check your electrical connections at the MAP sensor.



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sounds like a vacumm leak, hook up a vacumm gauge on the line going to the map sensor, it should read between -18 and -20 (with a stock engine) if it is around -5 to -15 you likely have a cracked line or loose connection


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i have a vac/ boost gauge and always have~20 at idle so i dont think that is the case. i will check the connections at the MAP sensor. this only happens when you give gas quickly (hitting boost) and shraply let it back to idle so it dosent really interfere with daily driving. anybody else with the gm charger and an air/ fuel guage give it a quick rev in neutral and let it quickly return to idle and see if it dosent hesitate and go lean...

bluzr2 wrote:i have a vac/ boost gauge and always have~20 at idle so i dont think that is the case. i will check the connections at the MAP sensor. this only happens when you give gas quickly (hitting boost) and shraply let it back to idle so it dosent really interfere with daily driving. anybody else with the gm charger and an air/ fuel guage give it a quick rev in neutral and let it quickly return to idle and see if it dosent hesitate and go lean...

mine does it 100% stock lol


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** Flat Broke Racing Inc.**

well then maybe the s/c just magnifies a problem (having the draw of the pulley when the engine slows to an idle)???

yup mine does that too, its a pain sometimes, every once in awhile if say i pull into a dunkin donuts drivethru and i have to cut the wheel all teh way every once in awhile it stalls, but i also have a lightened flywheel and crank pulley, so im sure those dont help at all. but when i had the charger on with stock clutch and whatnot it still did it once in awhile.


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Team Drop Zone
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Your car is working normally. Myself and others with the s/c have concluded that it's a screw up in GM's reflash. The IAC valve doesn't react fast enough to catch the idle. Therefore, it comes really close to stalling or actually does so.

My lightened flywheel actually helped the situation. It stopped bogging down more often. This really isn't a problem for me since my e-manage will catch the stall and prevent it as well. However, there isn't anything that can completely remedy the problem without going to a complete stand alone engine management system.


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I had that problem on my completely stock N/A engine.... every sensor in the car was changed and it didn't improve.

But - I threw in my MSD box and boom. No more "almost stalling" on the car anymore - she holds firm when the revs come down.

-Chris-



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