P0140 Diagnostic Trouble Code Discussion for January 2011
Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity
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| Help Request | Posted | |
| 2003 Chevrolet Silverado 2500 HD 6.0L MIL Lamp on VIN: 1GCHK24U83 P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Vehicle originally came in needing quite a bit of work after being purchased by customer. Did complete tune up (plugs, wires, fuel filter, fuel pump pressure & volume test) installed lower intake gaskets due to vacuum leak and lean codes. Replaced downstre... |
January 21, 2011 |
