P0140 Diagnostic Trouble Code Discussion for January 2024
Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity
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| Help Request | Posted | |
| 2015 GMC Terrain SLE 2.4L Negative Fuel Trims VIN: 2GKALMEK9F P0140: HO2S Circuit Insufficient Activity Sensor 2 Sympton 00 Test Failed Warning Indicator Requested. Vehicle runs fine however the fuel trims are crazy negative. Swapped MAF with known good. Swapped Cam Solenoids and throttle body with known good. (I own my own 2015 Terrain) |
January 05, 2024 |
