Multiple Misfire help

tcc974
01-29-2006, 02:47 PM
99 Camaro 3.8

The car started missing while under heavy load going up hill. Now it has gotten to the point where it is missing under normal driving. However while in park, it idles fine and no miss. I put the scanner on it and it just pulled "Multiple Misfire".

So far I have replaced the Plugs, Wires, and all the Coil Packs and they haven't helped a bit. Also tried fuel injector cleaner in case it was fuel related.

Anyone with any ideas?

crasher88
01-29-2006, 10:29 PM
check your ICM