magnacharged 402ci random misfire code?
Thread Starter
TECH Resident
iTrader: (1)
Joined: Jan 2007
Posts: 778
Likes: 0
From: bentonville, arkansas
magnacharged 402ci random misfire code? we currently have a 05 gto in our shop that we installed 402ci slp short block and a magnacharger. we recomended a low compression 402, but he ordered the high compression model to try to get more hp. we put the stock 243 ls2 heads and cam back on. also new ac delco plugs(magnacharger recomended) and msd wires. all gaskets are good, no leaks. plugs are good and coils are good. the car keeps throwing a random misfire code. we have went over this car many times and cant find anything wrong. the mis isnt even bad enough to feel inside the car. i talked to slp and they said that it could be a tuning issue. we want to have it dyno tuned but we want to make sure its running good before we do. can tuning fix something like a random misfire?
With the stock cam, you shouldn't be getting them - you generally tune them out for larger cams. Have you done a crank relearn yet for the new shortblock? If not, I would do one...
