Fuel Injector: Service and Repair

Fuel injectors, removing/installing

WARNING! Fire hazard. Do NOT smoke or have anything in area that can ignite fuel!

Removing
- remove ignition wire guides
- remove suction hose from hot wire Mass Air Flow (MAF) sensor
- disconnect hose to EVAP solenoid valve at throttle body

- disconnect harness connector from TP (throttle position) sensor
- disconnect IAC (idle AIR control) valve
- disconnect accelerator cable from throttle
- disconnect coolant hoses from throttle body and plug off
- disconnect connector hose from heated tube

- unclip fuel lines at cylinder head cover and remove from fuel rail
- disconnect vacuum hose from fuel pressure regulator
- remove intake manifold, upper section
- unclip lines to fuel injectors from wiring guide
- remove wiring guide
- remove fuel injectors and fuel rail as an assembly

NOTE: If the injectors are too tight within the holes of the lower section of the intake manifold carefully pry under the valve body using wrench SW 16.

Installing
- install in reverse order of removal

NOTE: Use care when installing the fuel injectors to avoid damaging the O-rings. Lightly lubricate the O-rings with oil to ease assembly.