RESIDUAL PRESSURE, CHECKINGTest Sequence:: Notes

Special tools and workshop equipment required

Pressure Tester Kit:VAS6550
Trim Removal Wedge:3409
Vehicle Diagnostic Tester

Test Conditions:

Voltage supply OK. Refer to Transfer Fuel Pump -G6-, CHECKING .
Fuel pressure is OK. Refer to FUEL PRESSURE, CHECKING .

-- Follow all safety precautions. Refer to SAFETY PRECAUTIONS .

-- Follow the guidelines for clean working conditions. Refer to FUEL SYSTEM GUIDELINES FOR CLEAN WORKING CONDITIONS .

-- Connect the :VAS6550/2 between the fuel line from the fuel tank and the shut-off valve -B- on the :VAS6550 .

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Connect the :VAS6550/1 between the fuel line leading to the engine and the shut-off valve -B- on the :VAS6550 .

-- Activate the fuel pump using the output diagnostic test mode to build the fuel pressure.

NOTE:

If the output diagnostic test mode is performed several times in succession, it may be necessary to briefly start the motor before repeating the output diagnostic test mode.

-- Read the fuel pressure on the pressure gauge.