Leakage. Permanent Fault

Checking Vacuum After The Canister Purge Valve
- Disconnect the hose between the canister purge (CP) valve and EVAP canister from the canister purge valve.
- Start the engine and idle it.
- Check that there is no vacuum in the EVAP valve when the valve is not activated.
- Use the scrolling values list, read off canister purge valve value to determine whether the valve is activated or not.
- Is there a vacuum?

No:
^ Intermittent fault.
^ See: Leakage. Intermittent fault.

Yes:
^ Try a new canister purge valve.
^ Then proceed to Verification section below.





Verification
- After carrying out the repair, check that the fault has been remedied as follows
- Ignition off.
- Reinstall all hoses/components.
- Erase diagnostic trouble codes (DTCs).
- Run the engine to operating temperature (above 70°C).
- A/C off.
- Gear selector in P or Neutral.
- Engine idling.
- Go into diagnostic test menu. Select leakage diagnostic.
- Wait until the diagnostic has finished. This can take up to 2 minutes.
- Read diagnostic trouble codes.

NOTE: If the text "START CONDITIONS NOT MET" or "DIAGNOSTIC INTERRUPTED" are displayed the diagnosis cannot be carried out. This can have several causes: for example high fuel evaporation, high canister charge, high tank pressure, fuel trim not active or a diagnostic trouble code (DTC) posted after the diagnostics have been activated. Check that no diagnostic trouble codes (DTCs) stored, try to activate the diagnostics again. Sometimes several attempts will have to be made before the diagnostics are carried out.

- Does the diagnostic trouble code recur?

No:
^ Fault corrected

Yes:
^ Proceed to test step below.

Fault-tracing Information
The verification result shows that the fault persists.

- Do you want to exit fault-tracing?

Yes:
^ Fault not corrected

No:
^ Return to Checking Vacuum After The Canister Purge Valve section above.