Monitor Strategy
WARNING: This page is about a different variant/trim than selected.
P0451:
MONITOR STRATEGY CHART (P0451)
| Related DTCs | P0451: Evaporative emission control system pressure sensor range/performance |
| Required Sensors/Components (Main) | Vapor pressure sensor |
| Required Sensors/Components (Related) | Mass Air Flow (MAF) meter and Engine Coolant Temperature (ECT) sensor |
| Frequency of Operation | Once per driving cycle |
| Duration | Signal fluctuation (noise) monitoring: 10 seconds No signal change (stuck) monitoring: 10 minutes |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
P0452 and P0453:
MONITOR STRATEGY CHART (P0452 AND P0453)
| Related DTCs | P0452: Evaporative emission control system pressure sensor/switch low input P0453: Evaporative emission control system pressure sensor/switch high input |
| Required Sensors/Components (Main) | Vapor pressure sensor |
| Required Sensors/Components (Related) | Mass Air Flow (MAF) meter and Engine Coolant Temperature (ECT) sensor |
| Frequency of Operation | Once per driving cycle |
| Duration | 7 seconds |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |