DTC P0441: Notes
DTC P0441 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0441 |
EVAP control system incorrect purge flow |
| DETECTION CONDITION |
- The PCM measures the purge line pressure, which is the vacuum, when the following conditions are met. If the vacuum between the charcoal canister and intake manifold does not reach the specification, the PCM determines that the EVAP system is clogged.
MONITORING CONDITION
- Engine speed: 1,500-3,550 RPM
(MTX)
- Engine speed: 1,220-3,000 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)
- Vehicle speed: 34.5-136 km/h {21.4-84.5 mph}
(ATX)
Diagnostic support note
- This is an intermittent monitor (EVAP).
- MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
- PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
- DIAGNOSTIC MONITORING TEST RESULTS is available.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
|
| POSSIBLE CAUSE |
- Charcoal canister malfunction
- Purge solenoid valve malfunction
- EVAP system leak detection pump malfunction
- EVAP hose damaged or loose
- EVAP pipe damaged
- PCM malfunction
|