Fuel Injectors, Removing and Installing

Fuel Injectors, Removing And Installing







- Remove engine cover (arrows).
- Disconnect wiring/connectors at:
- Fuel injectors -N30-, -N31-, -N32-, -N33-
- Intake Air Temperature (IAT) sensor -G42-
- Camshaft Position (CMP) sensor 2 -G40-
- Throttle valve control module -J338-







- Remove retaining bolts for fuel supply rail and disconnect vacuum line at fuel pressure regulator (arrows).
- Disconnect fuel distributor with injectors from intake plenum and set aside in rear of engine compartment on a clean cloth.


WARNING!
Fuel system is under pressure! Before opening system, place rags around the connection point. Then release pressure by carefully loosening connection.


- Disengage retaining clip and remove fuel injector.


NOTE: Fuel lines must be removed before replacing fuel distributor.


Installation is reverse of removal, noting the following:
- Remove O-rings at all opened connections. (Never remove plastic cap from valve head to replace front O-ring - pry O-ring off over plastic cap).
- Lightly lubricate O-rings with clean engine oil.

- Make sure fuel injectors are in place and seated correctly
- Check clip for unobstructed fitting.
- Place fuel rail with secured fuel injectors onto intake manifold, and apply uniform pressure to press it in.

Tightening torque

Component Nm
Fuel distributor at intake manifold 10