A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Canister Purge Control Valve: Testing and Inspection
EVAP Canister Purge Regulator Valve, Electrical Testing
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Disconnect connector at Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80).
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Perform a resistance measurement between terminals on valve using portable multimeter (VAG1526).
Specified value: 20 to 35 ohms
If specified value is not reached, replace Evaporative Emission (EVAP) Canister Purge Regulator Valve.
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Read readiness code => [ Readiness Code, Reading ] See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes. If DTC memory was erased, readiness code must be generated again => [ Readiness Code, Generating ] See: Computers and
Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If specified value is obtained, check voltage supply.
Voltage Supply, Checking
Test Prerequisite
‹› Fuse for Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) (in relay- and fuse holder in instrument panel, right side) OK.
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Disconnect connector at Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80).
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Connect voltage test lamp (VAG1527) between terminal 1 of connector and engine Ground (GND):
