DTC P0441: Notes
DTC P0441 (LF, L3) 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 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, 650 rpm [MT]/1, 220-3, 200 rpm [AT]
- Engine speed: 1, 500-3, 650 rpm [MT]/1, 220-3, 200 rpm [LF, AT]/1, 220-3, 800 rpm [L3, AT]
- Throttle opening angle: 19 %
(at engine speed is 2500 rpm
)
- Vehicle speed: 70-136 km/h {43.4-84.5 mph} [MT]/35-136 km/h {21.7-84.5 mph} [AT]
Diagnostic support note
- This is an intermittent monitor (EVAP system).
- The 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 RESULT is available.
|
| POSSIBLE CAUSE |
- Purge solenoid valve malfunction
- Evaporative emission system leak detection pump malfunction
- Charcoal canister malfunction
- EVAP hose damaged or loose
- EVAP pipe damaged
- PCM malfunction
|