DTC P0441: Notes
DTC P0441 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0441 |
EVAP control system incorrect purge flow |
| DETECTION CONDITION |
- PCM measures the purge line pressure, which is the vacuum when a following condition. If vacuum between charcoal canister and intake manifold does not reach the specified, PCM determines that the EVAP system has clogging.
MONITORING CONDITION
- Engine speed: 1, 500-3.450 RPM
[MTX], 1, 220-3.550 RPM
[ATX]
- Throttle opening angle: 25 %
(At engine speed is 2500 RPM
)
- Vehicle speed: 69.5-136 km/h {43.2-84.5 mph}
[MTX], 34.5-136 km/h {21.4-84.5 mph}
[ATX]
Diagnostic support note
- This is an intermittent monitor (EVAP system monitor).
- MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
- PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
- DIAGNOSTIC MONITORING TEST RESULTS is available.
|
| POSSIBLE CAUSE |
- Purge solenoid valve malfunction
- EVAP system leak detection pump malfunction
- Charcoal canister malfunction
- Damaged or loose EVAP hose
- EVAP pipe damaged
- PCM malfunction
|