Perform Steps 1 through 4 under Fuel Charging Assembly, Pre-Service
Procedures if removing fuel pressure regulator while fuel rail assembly is
installed on engine.
Remove vacuum line at pressure regulator.
Remove three Allen retaining screws from regulator housing and discard.
Remove pressure regulator assembly, gasket and O-ring. Discard gasket and
O-ring.
If scraping is necessary, be careful not to damage fuel pressure regulator
or fuel supply line gasket surfaces.
Installation
NOTE: Never use silicone grease. It will clog the injectors.
Lubricate new fuel pressure regulator O-ring with engine oil.
Ensure gasket surfaces of fuel pressure regulator and fuel rail assembly
are clean.
Install new O-ring and new gasket on regulator.
Using new Allen head retaining screws install fuel pressure regulator on
fuel rail assembly. Tighten three retaining screws to 3.0-4.5 Nm
(27-39 lb-in).