A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Checking internal resistance
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Using a multimeter, check the Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) terminals 1 and 2 for resistance.
Specified value: 22.0 to 30.0 ohms.
If the specified value is not obtained:
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Replace the Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80).
If the specification is obtained:
Checking voltage supply
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Using a multimeter, check the electrical harness connector terminal 1 to 2 for voltage.