Fuel Rail and Injectors Replace Opel Antara I



Fuel Rail and Injectors Replace

Remove

Warning : The fuel system is under pressure. To avoid fuel spillage and the risk of personal injury or fire, it is necessary to relieve the fuel system pressure before disconnecting the fuel lines.

1. Relieve the fuel system pressure. Refer to Fuel System Pressure Relief .
2. Disconnect the negative battery cable.
3. Disconnect the intake air temperature (IAT) sensor connector.
4. Loosen the clamp and disconnect the air cleaner outlet hose from the resonator.

5. Loosen the clamp and remove the resonator from the electronic throttle body.

6. Remove the engine cover.
7. Disconnect the breather hose and PCV hose from the cylinder head cover.
8. Disconnect the fuel feed line at the fuel rail.

Warning: Plug fuel lines.

9. Disconnect the fuel injector connectors.
10. Remove the fuel rail retaining bolts.

Important: Before removal, the fuel rail assembly may be cleaned with a spray-type cleaner, following the package instructions. Do not immerse the fuel rails in liquid cleaning solvent. Use care in removing the fuel rail assembly to prevent damage to the electrical connectors and the injector spray tips. Prevent dirt and other contaminants from entering open lines and passages. Fittings should be capped and holes should be plugged during service.

Important: If an injector becomes separated from the rail and remains in the cylinder head, replace the injector O-ring seals and the retaining clip.

11. Remove the fuel rail with the injectors attached.

12. Remove the fuel injector retainer clips.
13. Remove the fuel injectors by pulling them down and out.
14. Discard the fuel injector O-rings.

Install

Important: Different injectors are calibrated for different flow rates. When ordering new fuel injectors, be certain to order the identical part number that is inscribed on the old injector.

1. Lubricate the new fuel injector O-rings with engine oil. Install the new O-rings on the fuel injectors.
2. Install the fuel injectors into the fuel rail sockets with the fuel injector terminals facing outward.
3. Install the fuel injector retaining clips onto the fuel injector and the fuel rail ledge.
4. Make sure that the clips are parallel to the fuel injector harness connector.

5. Install the fuel rail assembly into the cylinder head.
6. Install the fuel rail retaining bolts.

Tighten

Tighten the fuel rail retaining bolts to 25 N•m (18 lb-ft).

7. Connect the fuel injector connectors. Rotate each fuel injector as required.
8. Connect the fuel feed line to the fuel rail.

9. Install the resonator to the electronic throttle body.

10. Connect the air cleaner outlet hose to the resonator.
11. Connect the breather hose and PCV hose to the cylinder head cover.
12. Connect the IAT sensor connector.
13. Install the engine cover.
14. Connect the negative battery cable.
15. Perform a leak check of the fuel rail and fuel injectors.