audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Leak Detection Pump, Checking, Vehicles With MPI Engine|Page 3978 > < Leak Detection Pump, Checking, Vehicles With MPI Engine|Page 3976
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If any of the specifications were not obtained:

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Replace the Leak Detection Pump (LDP) (-V144- ). Refer to Fuel Supply System Repair Information.

If the specified values were obtained:

Checking voltage supply

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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical harness connector terminal 3 to Ground (GND) for voltage.

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Operate the starter briefly.

Specified value: battery voltage.

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Switch the ignition off.

If the specified value was not obtained:

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Check the electrical harness connector for damage, corrosion, lose or broken terminals.

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Check the wiring for a short circuit to Ground (GND) or an open circuit.

Leak Detection Pump, Checking, Vehicles With MPI Engine|Page 3978 > < Leak Detection Pump, Checking, Vehicles With MPI Engine|Page 3976