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Old 05-27-2016, 06:43 PM   #3
GAGT - Senior Member
AKA: Phil
Join Date: Mar 2005
Location: Fort Wayne, IN
Age: 34
Posts: 1,099
Vehicle: 2001 Grand Am GT Coupe
O1GAGT Gettin' there
Have you tried a different pcm with a full write?
Are the injectors set correctly in the pcm?
Has timing been adjusted in the pcm or are you running the stock spark tables?

Have you ran a compression test on the engine?
What plugs and what wires?

If I remember correctly some of the 3800 guys got the P300 code and had to turn off reporting of the code when running an aftermarket cam.
"The world's best cam combined with a poor set of heads will produce an engine that's a dog. But bolt on a set of great heads even with a poor cam, and that engine will still make great power." ~John Lingenfelter
O1GAGT is offline   Reply With Quote