Monitor Strategy
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MONITOR STRATEGY
| Related DTCs | P0420: Catalyst deterioration |
| Required sensors/ components (Main) | Catalyst |
| Required sensors / components (Related) | A/F sensor, Heated oxygen sensor (HO2S), IAT sensor, MAF meter, CKP sensor, ECT sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 120 sec. (30 sec. x 4) |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |