P0161 OBD Trouble Code
1 result found
| Type | Powertrain - Fuel and Air Metering - ISO/SAE Controlled |
|---|---|
| Description | HO2S Heater Circuit Conditions |
| Location | Bank 2 Sensor 2 |
| Cause | Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.7L engine), ECT and I AT inputs less than 91°F and the difference between ECT and IAT inputs less than 9°F, then the PCM detected that the HO2S-22 signal remained within 150 mv of the startup HO2S-22 signal voltage, conditions met for 130 seconds after a cold startup iVofe Test invalid if system voltage is out-of-range for 4 seconds |
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