P0441

A : P0441. EVAP/Purge Valve Flow Check. Valve Stuck Closed.

A1 : CHECK EVAP/PURGE VALVE IS OPERATING.
1. Disconnect the Vapour pipe from the Inlet port of the EVAP/purge valve. (i.e., from fuel tank)
2. Run the engine for 2 minutes, ensuring that the engine reaches normal operating temperature.
3. Check that the EVAP/purge valve is operating, by touch or by sound. (Using a stethoscope, it will be possible to hear the valve operating.)

Is the valve operating?

Yes
Goto A2

No
CHECK for DTC P0444, P0445. Conduct green PCM drive cycle. For additional information, see 'diagnostic drive cycles'. Diagnostic Drive Cycles

A2 : CHECK FOR VACUUM AT EVAP/PURGE VALVE.
1. Check for vacuum at the valve.

Is a vacuum present?

Yes
Possible intermittent fault. Clear the DTC. Carry out a flow check monitor drive cycle, recheck DTCs. For additional information, see 'diagnostic drive cycles'. Diagnostic Drive Cycles

No
Goto A3

A3 : CHECK FOR BLOCKAGE IN THE SYSTEM.
1. Check for blockages in the intake manifold drilling, and the pipe from the intake manifold to the EVAP/purge valve.

Was a blockage found?

Yes
Rectify the blockage. CLEAR the DTC. Carry out a flow check monitor drive cycle. For additional information, see 'diagnostic drive cycles'. Diagnostic Drive Cycles

No
INSTALL a new EVAP/purge valve. CLEAR the DTC. Carry out a flow check monitor drive cycle, recheck DTCs. For additional information, see 'diagnostic drive cycles'. Diagnostic Drive Cycles