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P0146 Diagnostic Trouble Code Discussion for September 2014

Heated Oxygen Sensor (Bank 1 Sensor 3) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0146
Help Request Posted
2000 Chevrolet S10 4.3L MIL Lamp on VIN: 1GCCS19W4Y
P0146: Heated Oxygen Sensor (Bank 1 Sensor 3) Insufficient Activity. This S-10 had a junk-yard engine and ECM replaced at some point in the past, judging by the blue marking numbers. The ECM ID number is correct for 99-00 S-10 with 4.3 I did have a P325 knock sensor code, and thanks to this website found that the knock sensor ...
September 29, 2014