Test sequence
WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Jetta, 1996 Volkswagen Passat, and 1996 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect wiring from engine stop on injection pump, insulate and lay to one side.
- Remove injection lines using 3035 injector line wrench.
- Remove all fuel injectors and all heat shields.
- Thread VAG1323/2A adapter in place of fuel injectors. Insert old heat shield between adapter and cylinder head.
- Hand thread US1110 into compression tester adapter.NOTE: For compression tester usage, see manufacturers operating instructions.
- Operate starter until tester shows no further increase in pressure.
Compression pressures:
- New: 34 bar (493 psi)
- Wear limit: 26 bar (377 psi)
Permissible difference between all cylinders: 5 bar (73 psi)
NOTE:
Always replace the heat shield seals fitted between the cylinder head and the fuel injectors.
Heat shield installed position, (arrow) points to cylinder head.
Tightening torques:
- Fuel injector lines: 25 Nm (18 ft lb)
- Fuel injectors: 70 Nm (52 ft lb)