P0441

A : P0441. EVAPORATIVE PURGE VALVE FLOW CHECK. VALVE STUCK CLOSED

A1 : CHECK EVAPORATIVE PURGE VALVE IS OPERATING

1. Disconnect the Vapor pipe from the inlet port of the Evaporative purge valve (i.e., from fuel tank).
2. RUN the engine for 2 minutes, making sure that the engine reaches normal operating temperature.
3. CHECK that the Evaporative 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' above.

A2 : CHECK for VACUUM AT EVAPORATIVE 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' above.

No
Goto A3

A3 : CHECK for BLOCKAGES IN THE SYSTEM

1. CHECK for blockages in the intake manifold drilling, and the pipe from the intake manifold to the Evaporative 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' above.

No
INSTALL a new Evaporative purge valve. CLEAR the DTC. Carry out a flow check monitor drive cycle. RECHECK DTCs. For additional information, see 'diagnostic drive cycles' above.