volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Pressure Sensor, Checking|Page 3641 > < Fuel Pressure Sensor G247|Page 3638
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Fuel Pressure Sensor/Switch: Testing and Inspection
Fuel Pressure Sensor, Checking

Diagnostic Procedures

Fuel Pressure Sensor, Checking

Special tools, testers and auxiliary items required

‹› Multimeter.

‹› Wiring diagram.

Test requirements

‹› Fuel Pump (FP) Control Module (J538) OK. 

‹› The fuses for the engine electronics OK. 

‹› The fuel filter OK.

‹› The parking brake engaged.

‹› The battery voltage at least 12.5 V.

‹› The selector lever of automatic transmission in position "P" or " N".

‹› All electrical consumers switched off (radiator fan must NOT run during test).

‹› A/C switched off.

‹› The fuel tank at least 1/4 filled.

‹› The ignition switched off.

Test procedure

-

Observe safety precautions. Refer to => [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions

-

Observe Clean Working Conditions. Refer to => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean
Working Conditions

-

Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check.

Start diagnosis

Procedure

Checking voltage

-

Disconnect the electrical harness connector - 3 -for the Fuel Pressure Sensor (G247).

Fuel Pressure Sensor, Checking|Page 3641 > < Fuel Pressure Sensor G247|Page 3638