Touareg 2 V6-3.6L (BHK) (2008)
Fuel Pressure: Testing and Inspection
Fuel Pressure Regulator Valve, Checking
Fuel Pressure Regulator Valve, Checking
The following test procedure is used to diagnose the fuel pressure regulator valve.
Electrical Test
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Test requirements
‹› The ECM Power Supply Relay (J271) fuses OK.
‹› The Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".
‹› A/C switched off.
‹› Ground (GND) connections between engine/transmission/chassis OK.
‹› Ignition switched off.
Test procedure
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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
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Observe safety precautions.
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Observe rules for cleanliness.
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Disconnect the Fuel Pressure Regulator Valve electrical harness connector from Fuel Pressure Regulator Valve (N276).
Checking internal resistance
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Using a multimeter, check the Fuel Pressure Regulator Valve electrical terminals 1 to 2 for resistance.