[lyndabriggs]

Earl I am hoping you can give me some advice please.

I own a '95 Geo Tracker (4 wheel drive automatic trans FED emissions).

The check engine light has stayed on for a couple years now. No code is to be found on the ECM. My mechanic feels it is a failure with the ECM. He could not get the light to flash either at the test terminal.

You said your O2 sensor was shorted. How are you able to tell if it is shorted if there was no code on your ECM?

I'm looking for any advice before I consider purchasing a reconditioned ECM to replace mine.

Thank you for any help!