Lack of Power

Symptom: Engine delivers less than expected power. Little or no increase in speed on slight acceleration.

POSSIBLE CAUSE ACTION


Spark advance - excessive retard ^ Check Spark Controls.


Incorrect initial timing ^ Check base timing.
SEE IGNITION SYSTEM/ ADJUSTMENT PROCEDURES.

^ Check Timing belt alignment.


Incorrect spark advance ^ Check spark controls.
SEE IGNITION SYSTEM/ TIMING SPECIFICATIONS


Lean Air-Fuel mixture ^ Check fuel pressure.
^ Check O2 sensor.

^ Perform injector balance test (SFI only).


Restricted exhaust ^ Check Catalytic Converter system.


Poor or contaminated fuel ^ Recommend higher grade fuel