Originally Posted by MaDDMaNN
I am have an issue with the engine rev really high when I start my car in the morning. Yesterday, I started my in 35 degree wheather and the engine rev up to 3000 RPM's. I had to tap the gas to stop the engine from reving higher. I have a 2007 GT running a Bama 93 Performance tune with a cold air intake. Do I need to switch to a less aggressive tune for the winter, or is there some mechanical I need to be looking at. I know it is time for a tune-up, I am right at 90,000 miles.
Originally Posted by gmcmanus00
I would start with checking any and all hoses for security and tightness at the clamps due to the possibility of a vacuum leak. That high of idle seems fairly normal for cold temperatures right at ignition and it should idle down within a few seconds and slowly drop as the engine warms. Would also recommend remaining below 2000RPM until at operating temperature. Another thought - If you have your idle set high in your tuner (if you have one) then the higher the engine will rev at ignition. Stock Idle setting in your tuner should be 740RPM unless you are forced induction.
Gmcman has definitely given you some good advice. I would start with giving your car a once over to just to check for vacuum leaks etc.. It's pretty normal for a car to rev high on a cold start with 30* weather. However 3k sounds a little bit higher then normal!
Since you didn't have any issues with the tune until the freezing weather I'm pretty confident its not tune related. However I'd still like to look into the tune to make sure nothing is out of the ordinary! Our tunes are good 99% of the time. Occasionally there are errors because we hand write each tune. I'm confident my Bama team will fix it quickly if there's a problem! Majority of the time, its Small human error when filing your tune information form or by a Bama Member!
Shoot me a PM with your order # included & I'll have my head Tuning Specialist Mike Wilson contact you directly! Hang in there, You'll be enjoying your tunes again in no time.