thrasher246810

I have an 04 mustang gt. With bbk lontubes bbk uncatted xpipe SLP loud. Mouth mufflers my check engine light Is on Amd flashes which means multiple misfire. Would mil eliminaters and tune fix this? Please help

thrasher246810

also runs like crap spits and sputters

dawson1112

Uh no , if your engine light is flashing it is due to something serious. Take it and have the codes read, would be my first course of action.

dawson1112

A simple illuminated check engine light is just a reminder that something is wrong.

A constant flashing light means it is imperative you get it checked.

thrasher246810

Its been parked since it started doing it. I looked up what the flashing meant it said multiple misfire. Someone told me it was due to lack of o2 sensors. Guess I'll et her checked out

dawson1112

No sir lack of 02s would just set off a check engine light it wouldn't flash. And you need front 02 sensors those are the upstream sensors that tell the computer what your air/fuel is. The rear 02s are the down stream sensors and are only there to compare data from the front two so it knows how efficient the cats are. You can have the rear 02s turned off with a tune and not have any ill effects , the upstream sensors have got to be there or the car goes into limp home mode... and the computer defaults to a rich mixture for engine safety purposes.

VTX1800N1

Flashing just means it's misfiring. It could be just one cylinder or many. You need the codes read to find out.

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