volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking Fuel Pressure Regulator and Holding Pressure|Page 4973 > < Checking Fuel Pressure Regulator and Holding Pressure|Page 4971
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NOTE:  Before removing pressure gauge, place cleaning rags again around line connection which is to be disconnected and remove fuse 28 from
fuse holder again.

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Erase DTC memory of Engine Control Module (ECM). Diagnostic mode 4: Reset/erase diagnostic data. See: Computers and Control
Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data

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Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes

Vehicles with engine code BDC

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 1318/9 adapter

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V.A.G 1318/17 adapter

Work sequence

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Remove cover in front of fuse holder.

Checking Fuel Pressure Regulator and Holding Pressure|Page 4973 > < Checking Fuel Pressure Regulator and Holding Pressure|Page 4971