For 1990-2009 cars

#### Special Tools

• | J 34730-1A /KM-J-34730-91 Fuel Pressure Gage

• | KM-807 Closure Plugs

• | J 37088-A Fuel Line Disconnect Tool Set

### Removal Procedure

1. Open the hood.

Warning: Refer to Battery Disconnect Warning in the Preface section.

2. Disconnect the battery.

• | Remove the ground connection from the negative terminal.

• | Loosen the nut.

3. Remove the engine venting pipe (1).

• | Remove the wiring (2) from the cylinder head cover.

• | Disconnect the 2 quick-release fittings.

4. Remove the engine management wiring harness.

• | Disconnect the 9 wiring harness plugs.

- | Engine control module

- | Air mass flow meter

- | Tank vent valve

- | Throttle valve module

- | Valve, intake camshaft adjustment

- | Four injector valves

• | Remove the 2 wiring harness brackets.

• | Put the wiring harness to the side.

5. Place a drain pan underneath.

Warning: Refer to Gasoline/Gasoline Vapors Warning in the Preface section.

6. Release the fuel pressure via the test connection (1) using J 34730-1A /KM-J-34730-91.

Collect the exiting fuel in a suitable container.

7. Remove the fuel return line (1).

• | Remove the quick-release fitting with J 37088-A .

• | Seal the fuel line and the fuel rail with KM-807 .

8. Remove the fuel rail (2).

Remove the 2 bolts (1).

9. Remove the injectors.

• | Remove the 4 retaining clamps (1).

• | Pull out the 4 injectors.

### Installation Procedure

Note: Inspect the installation position and ensure correct fitting.

1. Install the 4 injectors to the fuel rail.

• | Install the 4 new seal rings.

• | Coat the seal ring with silicone grease (white).

• | Install the 4 injection valves.

• | Install the 4 retaining clamps.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the fuel rail.

Tighten
Tighten the 2 bolts to 8 N·m (71 lb in).

3. Install the fuel supply line to the fuel rail.

• | Remove the 2 KM-807 .

• | Connect the quick release fitting.

• | Connect into the bracket.

4. Install the engine management wiring harness.

• | Connect the 9 wiring harness plugs.

- | Engine control unit

- | Air mass flow meter

- | Tank vent valve

- | Throttle valve module

- | Intake camshaft actuator

- | Four injectors

• | Install the 2 wiring harness brackets.

5. Install the engine vent hose.

• | Connect the 2 quick-release fittings.

• | Connect the wiring harness to the cylinder head.

6. Connect the battery.

Install the ground connection to the negative terminal.

Tighten
Tighten the ground connection nut to 5 N·m (44 lb in).

7. For programming procedures, refer to Control Module References.
8. Close the hood.