Monitor Strategy
| Related DTCs | P0401: EGR valve high flow rate/low flow rate |
| Required Sensors/Components (Main) | EGR valve assembly Manifold absolute pressure sensor |
| Required Sensors/Components (Related) | Engine coolant temperature sensor Vehicle speed sensor |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 3 seconds |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |