For 1990-2009 cars

### Removal Procedure

1. Remove the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .
2. Remove the attaching screw (8) from the pressure regulator.
3. Remove the pressure regulator assembly (1) from the fuel rail.

Twist the assembly back and forth while pulling.

### Installation Procedure

Important: If the fuel pressure regulator is to be re-installed, inspect the filter screen (2) for contamination. If the screen is contaminated, remove and discard the filter screen.

1. Lubricate the new O-ring seal (3) with clean engine oil and install the O-ring in the regulator.
2. Install the regulator (1).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Important: Whenever there is not enough thread-locking material on the threads of reusable hardware, apply Loctite® 262 to ensure proper locking.

3. Install the pressure regulator attaching screw (8).

Tighten
Tighten the screw to 9.5 N·m (84 lb in).

4. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .