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Question

I have a 1997 gtp with mods. headers, ported m90, 3.0 pulley, cai, catback exhaust, hi flo injectors & fuel pump, ubend delete, performance cam, 3.29 final drive, reprogramed pcm and other things,,,, mileage 194,236 had the motor rebuilt but the camshaft was worn badly replaced it with a stock cam, lacks upper midrange power,,,, will pcm adjust to compensate or does it have to be reprogramed to stock cam (if the old performance cam is replaced with another like it will the old pcm work like before)    any answers you can give will appreciated

Submitted: 187 days and 2 hours ago.
Category: Pontiac
Value: $9
Status: CLOSED

Accepted Answer

Hi and welcome to Just Answer!

You will have to reprogram the PCM to the hi flow injectors and stock cam. If you go back to the stock program, you must put the stock injectors back.

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Expert: Anthony
Pos. Feedback: 100.0 %
Accepts: 
Answered: 5/19/2009

ASE Certified Technician

ASE Master Automobile Technician since 2000 17 Years + Exp.

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