volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Pressure Regulator Valve, Checking|Page 1965 > < Fuel Pressure Regulator Valve, Checking|Page 1963
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Check whether electrical wires between flange and Fuel Pump (FP)  are connected.

If no open circuits are found:

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Fuel Pump (FP) faulty, replace fuel delivery unit.

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--> Engine Mechanical Fuel Injection and Ignition 20 Removal and Installation

 

Fuel Pressure, Checking

Observe Safety Precautions: --> [ Safety Precautions ] See: Powertrain Management/Fuel Delivery and Air Induction/Description and Operation/Fuel
System

Observe Clean Working Conditions: --> [ Clean Working Conditions ] See: Powertrain Management/Fuel Delivery and Air Induction/Description and
Operation/Fuel System

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Remove high pressure in fuel system --> [ Fuel System ] See: Powertrain Management/Fuel Delivery and Air Induction/Description and
Operation/Fuel System.

CAUTION!
Fuel supply line is under pressure! Wear protective goggles and protective  clothing to prevent injuries and contact with skin. Before
removing from hose  connection wrap a cloth around the connection. Then release pressure by carefully  loosening the union nut.

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Place a cloth around connection and loosen union nut - arrow  - to reduce fuel pressure.

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Then tighten threaded connection again.

Fuel Pressure Regulator Valve, Checking|Page 1965 > < Fuel Pressure Regulator Valve, Checking|Page 1963