Fuel Injector: Service and Repair

Components:

REMOVAL
1. Release residual pressure from the fuel line to prevent fuel from spilling.

CAUTION: Cover the hose connection with rags to prevent splashing of fuel that may be caused by residual pressure in the fuel line.




2. Remove the delivery pipe with the fuel injectors.

CAUTION
1. Be careful not to drop any Injectors when removing the delivery pipe.
2. Be aware that fuel may flow out when removing the injector.

INSPECTION
1. Measure the resistance of the injectors between the terminals using an ohmmeter.

Resistance 15.9 ± 0.35 Ohm @ 20 °C (68 °F)




2. If the resistance is not within specifications, replace the injector.

INSTALLATION
1. Install a new grommet and O-ring on the injector.




2. Apply a coating of oil or gasoline to the O-ring of the injector.
3. Fit the injector onto the delivery pipe by twisting it to the left and right.




4. Be sure the injector turns smoothly.

NOTE: If it does not turn smoothly, the O-ring may be jammed: Remove the injector and re-insert it into the delivery pipe and recheck.
If the O-ring is damaged, replace it.