DTC Troubleshooting: P04DF(2.0L Engine): Inspection
EVAP Canister Purge Valve Functional Inspection (Open Stuck)
Test Procedure
- Preparation
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- EVAP canister purge valve: removed with its connector and vacuum hose connected
- Procedure
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- Disconnect the vacuum hose (purge line) (A) from the EVAP canister purge valve (B) in the engine compartment, then connect a T-fitting (C), the vacuum/pressure gauge, 0-4 inHg (D), and a vacuum pump/gauge, 0-30 inHg (E), to the vacuum hose as shown.
- Slowly apply about 2 kPa (0.6 inHg, 15 mmHg) of vacuum to the hose.
- Normal Conditions
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- EVAP canister purge valve holds vacuum.
Results
- If it is abnormal, there is a problem with the EVAP canister purge valve.
EVAP Canister Vent Shut Valve Inspection
Test Procedure
- If the other inspection item(s) indicated a normal condition, then it is determined that the remaining EVAP canister vent shut valve is the cause.
Results
- There is a problem with the EVAP canister vent shut valve.