Inspection
Start the engine and let it idle.
Confirm the injector operating sounds with a sounding rod or stethoscope.
If the injector does not operates, replace the injector.
Removal
Remove the intake manifold (page 5-54).
Disconnect the vacuum hose.
Remove the bolts and pressure regulator.
Remove the O-ring.
Remove the bolts, fuel pipe A and O-ring.
Remove the front injector from the intake manifold.
Remove the nuts, fuel pipe В and collars.
Remove the rear injector from the intake manifold.
Remove the seal ring, О-ring and cushion ring from the injector.
Installation
Apply oil to the new O-ring.
Install the new seal ring, cushion ring and O-ring, being careful not to damage the O-ring.
Replace the seal ring, cushion ring and О-ring with new ones as a set.
Install the rear injector to the intake manifold aligning the connector of the injector and groove on the intake manifold.
Install the collars, fuel pipe В and tighten the nuts securely.
Be careful not to damage the O-nng.
Install the front injector to the intake manifold aligning the connector of the injector and groove on the intake manifold.
Install a new О-ring to the fuel pipe B.
Install the fuel pipe A and tighten the bolts securely.
Be careful not to damage the O-ring.
Install a new О-ring to the pressure regulator.
Install the pressure regulator and tighten the bolts securely.
Connect the vacuum hose.
Install the intake manifold (page 5-56).
