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Differential Pressure Regulator Fuel Pressure
- Connect Pressure Gauge (VW 1318
) as previously described. See Figure
. Close pressure gauge valve. Disconnect differential pressure regulator connector from side of regulator.
- Operate fuel pump. Note reading on pressure gauge. Differential pressure should be 4.5-7.3 psi (.3-.5 kg/cm2
) less than readings noted in the FUEL INJECTION SYSTEM PRESSURE test.