Monitor Strategy
| Related DTC | 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 |