Golf Mk3
Servicing injection system
Checking fuel pressure regulator and holding pressure
The fuel pressure regulator controls the fuel pressure dependent upon intake manifold pressure. Special tools, testers, measuring instruments and auxiliary items required
Test conditions
=> Repair group 20; Removing and installing parts of the fuel supply system; Checking fuel pump Test sequence |
Warning!
Fuel system is under pressure! Before opening the system place a cloth around the connection. Then release pressure by carefully loosening the connection.
|
If the holding pressure drops below 2 bar: |
If the pressure does not drop:
|
If the pressure drops again:
If the pressure does not drop: If the pressure drops again:
Note: Before removing pressure gauge place a cloth around the connections to be loosened. |