jim010

Hello,

I have a 2012 GT that for a while I suspected felt a little weaker. With track apps, I am running 0-60 times of 5.7 sec. With a more aggressive tune, I have 5.2 sec. That does seem to confirm to me that I am down on power when I am reading that 0-60 for an automatic should be sub 5 sec easy.

I have been having issues with my car on start-ups, though. In the mornings, doesn't matter if it is 87 or 91 octane gas, the car idles rough bouncing between ~500 and ~800 rpm and seems like it is going to stall. often when it is like this, there is a clunk or 2 from the engine bay. Can't seem to figure it out. The idle does settle down, or I can avoid it by revving it a little higher. Smells of gas, too.

The car doesn't always do that, so I can't pinpoint the exact conditions needed to replicate this, but it usually happens when the car sits for at least several hours. It does not do it when the motor is warm.

This all connected? I datalogged it, but still can't figure it out.

Ideas anybody? I'd like to fix this and get my power back.

Cheers

tom281

Try cleaning the throttle body.

CiniZter

i hope you will be helped soon on a solution. i had similar issue when i had installed bama tune at the first time, talked to their rep. but after the new tune was send had no issue of stalling n low rev at start up.

jim010

Interesting. Do you know what they changed?

GrabberBlue5.0

You say you data logged the tune? What did you see?

jim010

To be honest, I don't know how to read this stuff, and I can't seem to attach it to this post. If anyone is willing to look at it, I can e-mail it, though. Unless there is another way to post a CF4 file on here.

jim010

I attached it as a zip in case someone wants to take a peak.