DTC P0441: Notes
DTC P0441 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0441 |
Evaporative emission control system incorrect purge flow |
| DETECTION CONDITION |
- PCM measures the purge line pressure, which is the vacuum when the following conditions are met. If vacuum between charcoal canister and intake manifold does not reach the specified value, PCM determines that the EVAP system has clogging.
MONITORING CONDITION
- Engine speed 1,100-2,700 rpm
- Throttle opening angle 19.9% (at engine speed of 2,000 rpm)
- Vehicle speed 69.5-136 km/h (43.2-84.5 mph)
Diagnostic support note
- This is an intermittent monitor (Evaporative system).
- The 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.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Purge solenoid valve malfunction
- Evaporative emission system leak detection pump malfunction
- Charcoal canister malfunction
- Catch tank malfunction
- EVAP hose damaged or loose
- EVAP pipe damaged
- PCM malfunction
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