A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Canister Purge Control Valve: Testing and Inspection
Evaporative Purge Regulator Valve, Checking
Observe all safety precautions: => [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions
View clean working conditions: => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean Working
Conditions
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.
Special tools, testers and auxiliary items required
‹› multimeter
‹› Wiring diagram.
Test requirements
‹› The Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) fuse OK.
‹› The ignition switched off.
‹› Voltage for the Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) is supplied via the Engine Component Power Supply Relay
(J757).
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check
Start diagnosis
-
Remove the engine cover with air filter. Refer to appropriate service manual.
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Disconnect the Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) electrical harness connector - 1 -.