Removal procedure
Attention! The fuel system is under pressure. Depressurize the fuel supply system before disconnecting fuel lines to prevent fuel spillage and burns.
1. Relieve pressure in the fuel supply system. See «Relieving pressure in the fuel supply system» in this section.
2. Disconnect the negative battery cable.
3. Disconnect the intake air temperature sensor connector (IAT).
4. Loosen the clamp and disconnect the air filter 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 the positive crankcase ventilation hose from the cylinder head cover.
8. Disconnect the fuel supply line from the fuel rail.
9. Connect the fuel injector connectors.
10. Remove the fuel rail mounting bolts.
Note: Before removal, the fuel rail assembly can be cleaned with an aerosol cleaner according to the instructions for use. Do not immerse fuel rails in solvent. Remove the fuel rail carefully, avoiding damage to the electrical connectors and nozzle tips. Do not allow dirt and other contaminants to enter open pipelines and channels. During maintenance, the fittings must be closed with caps and the openings with plugs.
Important: If the injector separates from the rail and remains in the cylinder head, replace the o-ring and clamp.
11. Remove the fuel rail with attached injectors.
12. Remove the fuel injector clamps.
13. Remove the fuel injectors by pulling them down and out.
14. Remove the fuel injector o-rings.
Installation procedure
Important: Different injectors are calibrated for different fuel consumption. When ordering a new fuel injector, order only the identical assembly according to the part number on the old injector.
1. Lubricate the fuel injector O-ring with engine oil. Install the o-rings on the fuel injectors.
2. Install the fuel injectors into the fuel rail sockets with the fuel injector terminals facing out.
3. Install the fuel injector clamps to the fuel injector and to the edge of the fuel rail.
4. Make sure the clamps are parallel with the fuel injector harness connector.
5. Install the fuel rail to the cylinder head.
6. Install the fuel rail retaining screws.
Tighten
Tighten the fuel rail retaining screws to 25 Nm (18 lb-ft).
7. Connect the fuel injector connectors. Rotate each fuel injector as needed.
8. Connect the fuel supply line to the fuel rail.
9. Install the resonator to the electronic throttle body.
10. Connect the air filter outlet hose to the resonator.
11. Connect the breather and positive crankcase ventilation hose to the cylinder head cover.
12. Connect the IAT sensor connector.
13. Install the engine cover.
14. Connect the negative battery cable.
15. Check fuel rail and fuel injectors for leaks.
