New to forum and have not been able to find my problem on here, hope someone can help. Just purchased a 2006 coupe with six speed trans. runs great but when coming to a stop with clutch pushed in the RPM's will drop normal but then rise back up to 1500 RPM's for about 5 seconds then will drop back down to the low idle about 600. It seems to also be worse as the car warms up. I have already tried the reset by holding gas down for 5 seconds as recommended on here and has not helped. any help would be greatly appreciated. Please help.

 

Vacuum leak? Is your car 100% stock? Check engine light?


I had this problem when I installed my cold air intake, because I didn't create an air tight seal around the throttle body.

Other than that, not too sure.

-Eric

 

Thanks for the help Eric. I will look into the throttle body, can not find a vacuum leak, check engine light is not on, as for car being 100% stock im not sure of what upgrades it may have as I have recently bought the car used from a dealer. Have not found any motor upgrades but not positive.

 

Like I said, i'm not sure if this is even the problem, but I'd say it's worth a look, considering the symptoms are very similar to what happened to me.

Here is a picture of a limited with a stock engine bay:



^^ If your engine bay looks like this, then at least you have the stock intake (airboxes on the underside of the engine cover). If you have the stock intake/engine cover like above, it probably isn't what i'm talking about, since my problem was a self-installed coupler slipping off the throttle body, creating a leak.

One thing you might want to try just for kicks is to reset the ECU. Disconnect the negative terminal of your battery for at least 30 minutes and then reconnect it, and give it a try.

I'll try and think of more things, but that's all I can think of for now.

Good luck!

-Eric