Fuel Pressure Test Port: Service and Repair

Fuel Injection Supply Manifold:

Removal
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, using Multiport Fuel Injection (MFI) Fuel Pressure Gauge T80L-9974-B, or equivalent.

2. Using an open-end wrench or suitable deep well socket, remove fuel pressure relief valve.

Installation
1. Install fuel pressure relief valve. Tighten fuel pressure relief valve to 7.75 Nm (69 lb.in.).

2. Perform Fuel Charging System, Post-Service Procedures: Service and Repair

3. Install fuel pressure relief valve cap. Tighten fuel pressure relief valve cap to 0.6 Nm (5.3 lb.in.)