Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I’m Cary and I’ll be helping you today.Please understand that I can't smell, hear, or touch the vehicle, so patience is appreciated. Before leaving the site make sure and leave me a rating. You can still reply to me as many times as needed, even after the rating..
If this problem started with the removal of the trans I would double check for a pinched wiring harness. Possibly between the engine and trans. Have you checked that yet?
The easiest way would be to do a visual. Use a light, mirror, what ever you had to use to follow the O2 harness from the sensors up to the main engine harness. You could OHM the wires but you would have to disconnect from sensors and the ECM connector. And even then if you found one shorted to ground you would still have to do a visual to locate the short.
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