P0151 Diagnostic Trouble Code Discussion for April 2021
Air Fuel Sensor (Bank 2 Sensor 1) Circuit Low Input (Lean Shift)
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| Help Request | Posted | |
| 2004 Other GM VY 3.8L MIL Lamp on VIN: 6G1YK32A84 P0151: Left O2 volt low. Customer complain of MIL light on. Found ECU staying in open loop even after warm up on 1800rpm for 5 min. and coolant temp. at 93C. As you see in the Testing and Results readings. Check O2 heater circuits for voltage drop under load, OK. Checked harness f... |
April 22, 2021 |
