I have been upgrading my 98 gtp for the past month and doing basic maintenance.
valve cover gaskets
fuel injectors because of cylinder injector randomly sticking
zzp downpipe with magnaflow cat
zzp pcm 1.0
crankshaft position sensor because randomly my rpms would drop
i had to take out the voltage booster because it was making my car misfire. mechanic says that there was no voltage going to injector 5. but after i took out the voltage booster it stopped misfiring at idol
and within the past couple of weeks its been misfiring alot. runs smooth in idol. but as i floor it - misfires. after 2000rpms - misfires.
if i put it in neutral and floor the pedal it wont misfire. just seems as if it only does it in gear or in park. check engine light came on the codes that popped up were P0205, P03513, P1652.
and i put in autolite 104s with a .055 gap.
