If the engine still does not perform satisfactorily, one or
2. Stop the engine and remove the fuel pipe between
the fuel return manifold and the injector.
more fuel injectors may be at fault and may be checked
3. Hold a finger over the injector fuel outlet and crank
the engine with the starter. A gush of fuel while turning
1. Run the engine at idle speed and cut out each
the engine indicates an ample fuel supply; otherwise,
injector in turn by holding the injector follower down with
the injector filters are clogged and the injector must be
a screw driver. If a cylinder has been misfiring, there
removed for service.
will be no noticeable difference in the sound and
operation of the engine when that particular injector has
been cut out.