System Pressure
- Remove fuel line from cold start valve. See Fig 1
. Remove test plug from distributor lower chamber. Connect Pressure Gauge (VW 1318) between fuel line from cold start valve to lower chamber. See Fig 1
.
- Disconnect differential pressure regulator harness connector. Remove fuel pump relay. Jump fuel pump relay socket. Open valve on pressure gauge.
- Energize fuel pump. Note pressure reading on pressure gauge. Pressure should be 88-94 psi (6.2-6.6 kg/cm2
). System pressure is not adjustable.
Courtesy of AUDI OF AMERICA, INC.