For 1990-2009 cars

1. Install a new O-ring onto the fuel injector.
2. Lubricate the O-ring with engine oil.
3. Install a new copper washer into the fuel injector bore in the cylinder head.
4. Install the fuel injector bracket pin.
5. Install the fuel injector with fuel injector bracket.

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.

6. Install the fuel injector bracket bolt.

Tighten
Tighten the fuel injector bracket bolt to 50 N·m (37 lb ft.).

7. Install the fuel injector return pipe assembly.
8. Install the fuel injector return line to injector eye bolts and washers. Lubricate the washers with diesel fuel before installing.

Tighten
Tighten the fuel injector return line to injector eye bolts to 16 N·m (12 lb ft).

9. Install the fuel injector return line to cylinder head eye bolts and washers. Lubricate the washers with diesel fuel before installing.

Tighten
Tighten the fuel injector return line to cylinder head eye bolts to 17 N·m (12 lb ft).