Fuel Pressure Test Port: Service and Repair

WARNING: Fuel supply lines will remain pressurized for some period of time after the engine is shut off. This residual pressure must be relieved before servicing of the fuel system is begun.

Fuel Pressure Regulator:

REMOVAL AND INSTALLATION
1. If fuel injection supply manifold is mounted to engine, remove fuel tank filler cap, then release pressure from system at fuel pressure relief valve on fuel injection supply manifold using MFI Fuel Pressure Gauge T80L-9974-B.
2. Using an open end wrench, remove fuel pressure relief valve.
3.. To install fuel pressure relief valve and cap. Tighten fuel pressure relief valve to 6-10 Nm (53-89 lb in).