Catalyst Monitor
WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
CATALYST MONITOR OPERATION TABLE
| DTCs | P0420 (for Bank 1), P0430 (for Bank 2) |
| Monitor execution | Once per driving cycle |
| Sensors / components OK | A/F sensor, A/F sensor heater, HO2S, HO2S heater |
| Monitoring Duration | Min 40 sec. |
ENABLE CONDITIONS TABLE
| Parameter | Minimum | Maximum |
|---|---|---|
| Engine coolant temp. | 58°C (136°F) | - |
| Intake air temp. | -14°C (7°F) | 70°C (158°F) |
| Vehicle speed | 44 mph | 81 mph |
| Engine load | Level road | |
| Engine speed | 1675 r/min | 3500 r/min |
| MAF | 11.6 g/s | 50.0 g/s |
| Fuel enrichment | 95% | 106% |
| Time from idle switch on to off | 1 sec. | - |
| Time from engine start | 160 sec. | |
| Engine load change | Constant speed | |
| Estimated catalyst temp. | 500°C (932°F) | 800°C (1472°F) |
| Fuel system status | Closed loop mode | |
TYPICAL MALFUNCTION THRESHOLDS TABLE
| Coefficient of catalyst deterioration > 0.5 |