TT Coupe L4-1.8L Turbo (ATC) (2001)
Checking internal resistance
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Disconnect connector at EVAP valve.
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Connect multimeter at valve for resistance measurement.
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Specified value: 22 - 30 ohm
If specified value is not obtained:
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Replace Evaporative Emission (EVAP) canister purge regulator valve - N80 -.
If specified value is obtained:
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Check voltage supply.
Checking voltage supply
NOTE: Voltage is supplied to the EVAP valve via the Fuel Pump (FP) relay.
Test requirement
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Fuse for the EVAP valve OK
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Disconnect connector at EVAP valve.
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Connect VAG 1527B voltage tester as follows:
Harness connector terminal
Measure to
1
Engine Ground
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Operate starter briefly.
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LED must light.
If LED does not light:
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Check wire connection from terminal 1 to Fuel Pump (FP) relay via fuse for open circuit.
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Repair open circuit if necessary.
If wire connection is OK:
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Check Fuel Pump (FP) relay. See: Fuel Delivery and Air Induction/Fuel Pump/Fuel Pump Relay/Testing and Inspection