Monitor Strategy
MONITOR STRATEGY REFERENCE
| Related DTCs | P043E: 0.02 inch reference orifice (low flow) P043F: 0.02 inch reference orifice (high flow) |
| Required Sensors / Components | Pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 2 minutes (varies with amount of fuel in tank) |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
MONITOR STRATEGY
| Related DTCs | P0441: EVAP canister purge valve (open stuck) P0441: EVAP canister purge valve (close stuck) |
| Required Sensors / Components | Purge VSV and pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 12 minutes (varies with fuel in tank) |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
MONITOR STRATEGY
| Related DTC | P0441: Insufficient EVAP purge flow |
| Required Sensors / Components | Purge VSV and pump module |
| Frequency of Operation | Continuous |
| Duration | 20 to 25 seconds |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
MONITOR STRATEGY
| Related DTCs | P0451: FTP Sensor Noise P0451: FTP Sensor Stuck P0452: FTP Sensor Range Check (Low voltage) P0453: FTP Sensor Range Check (High voltage) P0450: FTP Sensor Range Check (Chattering) |
| Required Sensors / Components | Pump module |
| Frequency of Operation | Once per driving cycle: P0451 sensor stuck Continuous: P0451 sensor noising, P0450, P0452 and P0453 |
| Duration | 0.5 seconds |
| MIL Operation | Immediate: P0450, P0452 and P0453 2 driving cycles: P0451 |
| Sequence of Operation | None |
MONITOR STRATEGY
| Related DTCs | P0455: EVAP gross leak P0456: EVAP 0.02 inch leak |
| Required Sensors / Components | Purge VSV and pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 15 minutes (varies with amount of fuel in tank) |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
MONITOR STRATEGY
| Related DTCs | P2401: EVAP leak detection pump (stuck OFF) P2402: EVAP leak detection pump (stuck ON) |
| Required Sensors / Components | Purge VSV and pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 2 minutes (varies with amount of fuel in tank) |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
MONITOR STRATEGY
| Related DTCs | P2419: EVAP canister vent valve (open stuck) P2420: EVAP canister vent valve (close stuck) |
| Required Sensors / Components | Purge VSV and pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 12 minutes (varies with amount of fuel in tank) |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |