Lack of Power, Sluggish

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 CAM timing.

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 (MPI).

Restricted exhaust Check Catalytic Converter system.

Poor or contaminated fuel Recommend higher grade fuel