I found this guy who does TBI/TPI/LT1/LS1 PCM tuning. All you do is send your pcm to him and a list of crap that is done to your car and he will reprogram your pcm to work with your mods. Or if you have your own program, he can email you a tune for your pcm. And he does it in little time. Check...

A few months back my check engine soon light came on and when it comes on the fans come on also.. Then I got it scanned and it just threw an egr code... what causes this? can blocking off the egr fix it? I cleared the code and it came back... now 4 months since then my check engine light is on...