Took overkill pcm out and car ran fine. Put it back in and my gauges stop working when they want to, gas mileage plummets and it still wants to die apon first take off...
Originally Posted by Fivefingerdeathpunch
contact will at overkill and explain your problem. he can try and help you.
2001 Pontiac Grand Prix GT : Stock and slow and SOLD.
2001 Pontiac Grand Prix GTP Special Edition