TT Coupe L4-1.8L Turbo (AWP) (2005)
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Check indication in display field -1 -.
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Increase engine RPMs.
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Exhaust temperature must rise
If exhaust temperature remains constant or indicates an implausible value:
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Check voltage supply.
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Check wire connections.
Checking Voltage Supply
NOTE: Fuse for exhaust temperature sensor OK. See Electrical Wiring Diagrams, Troubleshooting Component Locations
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Switch ignition off.
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Remove cover in front of intake manifold.
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Disconnect electric harness connector - arrow - at Exhaust Gas Temperature (EGT) Sensor 1 G235.
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Connect V.A.G 1527B voltage tester as follows:
Harness connector Terminal
Measure to
3
Engine Ground (GND)
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Operate starter briefly.
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LED must light up.
If LED does not light up:
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Perform the following tests marked with dots:
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Check wire connection from Exhaust Gas Temperature (EGT) Sensor 1 G235 to Fuel Pump (FP) relay via fuse for open circuit.
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Check Fuel Pump (FP) relay.
Checking Wire Connections