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O2 sensor wiring


New Member
Hi everyone. I have a situation. I have an 88 LX 5.0 engine harness with a 90 ECU and a new O2 harness from LMR. How do I pin it and not fry my ECU? The O2 Harness I have (don't know if it is from the car or the donor engine) has a green jumper loop. I appreciate any help. Thanks.