CaMaRo904

So i recently did a ls1 swap and put a 230/236 cam and headers. Now that ive got it running its misfiring everytime i drive anywhere and i was going to get a dyno tomorrow but deffinatly dont wanna do that with it misfring.

Any suggestions on where to start looking? Could it be my massair sensor is clogged or maybe i have a bad coil??

poltergeist 02

iTrader: (65)

check to make sure your spark plug wires are on all the way. this has happend to many on tech. some of them can be a bitch to get it all the way on.

LS6427

iTrader: (2)

Also make sure NONE of the spark plug wires are touching ANY metal exhaust piping at all...or anything metal for that matter. They must not be touching any metal.

Could have cracked a plug if you bumped the headers into them when installing them.

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CaMaRo904

thanks guys im gonna make sure of that when i get outta work and hopefully i can get her running right cause i know shes ready for a tune

CaMaRo904

So i checked all my spark plugs and there all good and all plugged in still misfiring so i swapped MAF from the newer engine i just installed and its still misfiring

LS6427

iTrader: (2)

If its misfiring you should have codes telling you which cylinders it is......if so, it'll be easy to fix the problem. If not....thats gonna be tough.

Misfires are usually from a fuel injector, coil, wire, plug or 02 sensor issue. But could be deeper like reluctor wheel issues or bent valves/push rods.

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CaMaRo904

Yea i gotta take it to my buddys and get him to scan it again but im pretty sure he had scanned it an it threw a code for a misfire and i wanna say its the 5th cylinder im not 100% sure so hopefully well be able to figure it out today thanks for the help