P0422 OBD Trouble Code
1 result found
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | Catalyst Efficiency Fault Conditions |
| Location | Bank 1 |
| Cause | Engine running in closed loop with throttle open for 3 minutes, ECT sensor input over 147°F, VSS over 20 mph, engine at 1200-1700 rpm, MAP sensor input at 1.5-2.0v, then test started and PCM detected that the rear HO2S-12 switch rate reached 70% of the front HO2S-11 switch rate |
Try also: https://www.obd-codes.com/p0422
