volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Pressure Regulator and Holding Pressure, Checking|Page 4412 > < Fuel Pressure Regulator and Holding Pressure, Checking|Page 4410
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Fuel Pressure Regulator: Testing and Inspection
Fuel Pressure Regulator and Residual Pressure, Checking

Fuel Pressure Regulator And Residual Pressure, Checking

Observe safety precautions.
Observe rules for cleanliness.

Requirements

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Parking brake must be engaged or else daylight driving lights will be switched on.

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For vehicles with automatic transmission, selector lever must be in position -P- or -N-.

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Delivery quantity and check-valve of Fuel Pump (FP) OK, check. See: Fuel Pump/Testing and Inspection/Fuel Pump (FP), Checking - I

Vehicles with engine code AEG, AVH, AZG

Function

The fuel pressure regulator controls the fuel pressure as a function of the Manifold Absolute Pressure (MAP).

Recommended special tools and equipment

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V.A.G 1318 pressure gauge

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V.A.G 1318/10 adapter

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V.A.G 1318/11 adapter

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VAG1318/16 hose adapter

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VAS5024 assembly tool for spring-type clamps

Work sequence

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Remove cover in front of fuse holder.

Fuel Pressure Regulator and Holding Pressure, Checking|Page 4412 > < Fuel Pressure Regulator and Holding Pressure, Checking|Page 4410