Fuel Injector: Service and Repair

Fuel Injectors

Removing

• Observe safety precautions. Refer to => [ Safety Precautions ] Multiport Fuel Injection.

• Observe the rules for cleanliness. Refer to => [ Clean Working Conditions ] Multiport Fuel Injection.

- Check if a coded radio is installed. Obtain the anti-theft code if necessary.

- Disconnect the battery.

- Remove engine cover with air filter. Refer to => [ Engine Cover with Air Filter ] Engine Cover With Air Filter.

CAUTION!
• Fuel supply line is under pressure! Wear protective goggles and protective clothing to prevent injuries and contact with skin. Before loosening the fuel lines, place a cloth around the connection point. Disconnect the connection carefully to release the pressure.

- Disconnect vent line - 1 - and fuel supply line - 3 -. To release line - 1 -, press the circlip in. With line - 3 -, the retainer must be pressed upward in the housing.





- Disconnect connectors - 1, 2 and 6 -.





- Remove wiring harness - 3 - from transport strap.

- Pull clamp - 4 - and retaining ring - 5 - out of locking mechanism.

- Remove bolt - 7 - and remove transport strap.

- Remove bolts - 1 - and pull fuel rail with injectors evenly out of intake manifold.





- Seal or cover openings in intake manifold.

- Pull of retaining clips - 3 - and then fuel injectors.

Installing

- Install new O-rings for fuel injectors and coat them lightly with clean engine oil.

- Press fuel injectors into fuel rail so that tabs - 1 and 2 - align.





- Slide retaining clip - 3 - as shown into groove of fuel injector. Collar - 4 - must be located correctly in cutout of retaining clip on both sides.

- After assembling, check all fuel injectors for correct fitting.

- Attach fuel rail with secured fuel injectors to intake manifold and press it in uniformly.

- Bolt fuel rail to intake manifold.

The rest of the installation follows the reverse of the removal procedures. When doing this note the following:

- Connect the battery.

- Bleed fuel supply system. Refer to => [ Fuel System, Bleeding ] Service and Repair.

Tightening Specification