Rabbit Convertible L4-1715cc 1.7L SOHC (1982)
Fuel Pressure: Testing and Inspection
Residual Pressure
1.
Install pressure gauge.
2.
Start engine and run at idle.
3.
Bleed pressure gauge by holding gauge down and opening and closing lever several times.
4.
Place lever at flow through position.
5.
Run engine until oil temperature is 50 - 70°C (122-158°F).
6.
Control pressure should be 3.3 - 3.7 bar (48-54 psi) with vacuum hose connected.
7.
With the engine OFF, residual pressure should be:
After 10 minutes .......................................................................................................................................................................... 2.6 bar (38 psi).
After 20 minutes .......................................................................................................................................................................... 2.4 bar (35 psi).
8.
If pressure drops below minimum specifications, check for leaks in;
a. Fuel lines,
b. Fuel pump check valve,
c. Pressure regulating valve,
d. Cold start valve, frequency valve,
e. Fuel distributor,
f.
Injectors, and fuel pump.
g. Fuel accumulator
Replace components as necessary.
