P0155 OBD Trouble Code
1 result found
| Type | Powertrain - Fuel and Air Metering - ISO/SAE Controlled |
|---|---|
| Description | HO2S Heater Circuit Conditions |
| Location | Bank 2 Sensor 1 |
| Cause | Engine at idle after a cold startup, ECT sensor input less than 147°F, BTS ambient air input at ±59°F of ECT input, then test started and the PCM detected that the left front HO2S-21 signal was over 300 mv for 30-90 seconds. |
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