View Single Post
Old 07-28-2008, 04:29 PM   #6
Maniac SS
Registered User

Status: Offline
Join Date: Jul 2008
Member ID: 92992
Location: Elmhurst, IL
Age: 25
Posts: 52
Re: tuning pcm on whippled 00 5.3
If you run the stock computer with larger injectors it will run like crap and foul out the plugs. I would recommend having a mail order tune done on your computer. Some shops require you mail them the PCM and they will mail it back tuned. A few will send you out a new PCM in advance and you just swap it out and send back your stocker.
03 Silverado SS | 98 Camaro Z28 | 89 Sierra 5.7 | 70 Chevelle SS 454 LS6
  Reply With Quote