Monitor Strategy
| Related DTCs | P219A: Air fuel ratio cylinder imbalance monitor P219C: Air fuel ratio cylinder imbalance monitor (cylinder 1) P219D: Air fuel ratio cylinder imbalance monitor (cylinder 2) P219E: Air fuel ratio cylinder imbalance monitor (cylinder 3) P219F: Air fuel ratio cylinder imbalance monitor (cylinder 4) |
| Required Sensors/Components (Main) | Air fuel ratio sensor, Crankshaft position sensor |
| Required Sensors/Components (Related) | Mass air flow meter sub-assembly, Engine coolant temperature sensor |
| Frequency of Operation | Once per driving cycle |
| Duration | 10 to 15 seconds |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |