hello guys, Im new here to the forum.
I bought an 04 gtp for real cheap, has a few problems.
during start up it smokes real bad out the exhaust and runs rough, did some homework and had my coworker do a full live scan.
CEL codes it showed p0300- multiple missfire, p0128 thermostat
digging more into it we found that cyl 1 and 2 had the same excact amount of misfires at pretty much the same time. no other cyl had any missfire. i pulled a couple spark plugs from the front of the engine and they seemed wet and black.
did my homework and figured it was the intake gasket? because cyl 1 & 2 run off different coils. so i went to the store and got a complete intake lower and upper gasket. got some plugs and new wires. hoping this is the issue.
hopefully someone has some more insight and has a few pointers, also on the top of the s/c theres a vacccum port that has 3 nipples on it and the previous owner plugged one of them with electrical tape. Ill get some pics up and also took a video of the scan which shows just about everything.
im hoping to get it running right over the weekend.
