P0140 Diagnostic Trouble Code Discussion for May 2016
Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity
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| Help Request | Posted | |
| 2003 Saab 9-3 SE 2.0L MIL Lamp on VIN: YS3DF78K63 P0140: Bank 1 sensor 2. This code was a problem 3 years ago and it came back again. A local tire shop put in a junk sensor. We replaced it with an OE part. Driving the car yields proper operation on the scanner. Why is it coming back? No leaks in exhaust system or any other running i... |
May 18, 2016 |
