Passat Wagon L4-1781cc 1.8L DOHC Turbo (ATW) (2000)
Contact 1 + socket 108
Contact 2 + socket 98
Contact 3 + socket 101
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Wire resistance: Max. 1.5 Ohms
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Additionally check wires for short to one another.
If no faulty wiring is detected and voltage was present between contacts 1 + 3:
If no faulty wiring is detected and no voltage was present between contacts 1 + 3:
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Replace engine control module, Refer to Powertrain Mangement.
Checking function
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Connect the test box V.A.G 1598/31 to engine control module wiring harness and to engine control module.
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Reconnect connector to charge air pressure sensor -G31-.
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Connect multimeter to sockets 101 and 108.
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Start engine and measure basic voltage.
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Specification: 1.80 to 2.00 V
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Raise engine revs by pressing accelerator to:
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Specification: 2.00 to 3.00 V
If the specifications are not attained:
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Replace Charge air pressure sensor -G31-.