bad ecm???? how do you know??? - Third Generation F-Body Message Boards

Bobby_80s · 05-05-2007, 02:04 AM

how do you know if your ecm has decided to go bad on you?

car is still drivable but i want to rule it out as a possibility for my lean code 44. theres soooo many thing i can replace or test for this problem. i would hate to do allll of that if all i had to do was replace my computer.

any suggestions?

Crazy 84 Z28 · 05-20-2007, 06:11 PM

Some shops can test your ecm for free examples include autozone, or advance auto.
----------
Some shops can test your ecm for free examples include autozone, or advance auto. Call around your area to see if some one can test
----------
Some shops can test your ecm for free examples include autozone, or advance auto. Call around your area to see if some one can test your ecm.

Kingsnake · 06-12-2007, 11:17 PM

I would start by checking your 02 voltage... May have gone bad and is sending a false lean to the ECM... Does the engine seem to be running rich and you are getting a lean code? What do your spark plugs look like?

Bobby_80s · 06-13-2007, 12:15 AM

wana know how you know? well u cange ur maf with a new or rebuilt one and vrooom! ur car comes back to life.

turns out after changing relays and no difference i put on a rebuilt maf and car runs much better

thanks guys