volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Pressure Regulator|Specifications|Page 2994 > < Fuel Pressure Regulator|Specifications|Page 2992
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Fuel Pressure Regulator: Testing and Inspection

Fuel Pressure Regulator and Residual Pressure, Checking:

The fuel pressure regulator controls the fuel pressure relative to Manifold Absolute Pressure.

Special tools, testers and auxiliary items:

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VAG 1318 pressure tester.

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VAG 1318/10 adapter.

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VAG 1318/11 adapter.

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VAG 1318/16 adapter.

Test conditions:

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Fuel pump delivery rate OK.

Test sequence:

Note:To prevent fuel spray when loosening hose connections, wrap a cloth around the connection.

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Remove fuel rail plug -1- from fuel rail and connect pressure gauge VAG 1318 with adapter VAG 1318/10 and hose VAG 1318/1 to fuel rail. the
shut-off lever on the pressure gauge must be closed (lever -arrow- at right angles to direction of flow)

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Start engine and let idle.

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Check fuel pressure.
Specification: Approx. 2.5 bar (36 psi).

Fuel Pressure Regulator|Specifications|Page 2994 > < Fuel Pressure Regulator|Specifications|Page 2992