P0139 Diagnostic Trouble Code Discussion for March 2004
Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response
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| Help Request | Posted | |
| 1994 Chevrolet S10 Blazer Tahoe 4.3L Poor Idle Quality, Cuts out, Misfire, hard starting VIN: 1GNCT18Z2R P0139: O2 sensor circuit. First post , bear with me. This Blazer came in barely running. Customer said barely made it home the day before and would only run up to 25 mph. When he brought it to the shop, said it ran fine for about 5 miles and suddenly started running bad again. Pulled a... |
March 31, 2004 |
