volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Canister Purge Solenoid > < Charcoal Canister By-Pass Valve <--> [Canister Purge Control Valve]|Locations|Page 4513
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Component Location

TESTING

1.

Disconnect the gray harness connector from the valve.

Fig. 42  Evaporative Emissions Control (EEC) System Frequency Valve, 16V

2.

Remove the vacuum hoses from the valve and blow through it.
Air should pass through valve.

3.

Apply system voltage to the valve connectors and blow through it. Air should not pass through valve.

4.

If the valve fails either test it should be replaced.

Canister Purge Solenoid > < Charcoal Canister By-Pass Valve <--> [Canister Purge Control Valve]|Locations|Page 4513