sipofa

Hey guys, I got a SS that has been misfiring since I got it. Got a new driver side cat and rear sensor and still same problem, when you open it up engine light comes on, but it misfires all the time between 25-4000rpm. When engine light comes on code is always the same. As long as you drive easy the engine light does not come on. Any ideas???? Thanks.

calongo_SS

iTrader: (7)

plugs, wires, fuel filter, dirty/weak injector, vacuum leak.... that should get you started.

Have you scanned it? What code? multiple cylinders or just one?

sleepersilverado

iTrader: (1)

what all is done to the car?

sipofa

Hello, new wires, plugs, fuel filter, rh cat and rear o2 sensor, under hard accelleration it misses, if I roll on it usually takes the gas ok??? All car has is a LID and Flowmaster cat back. Thanks.

Michael02hawk

iTrader: (26)

It could simply need a crank re-learn.

sipofa

hello guys, I unplug my MAF and no more hesitation????

calongo_SS

iTrader: (7)

Try cleaning it with some electrical contact cleaner and then put if back.

sipofa

Hello, yeah that is what I am trying now. hope it works.