Lack of Power, Sluggish

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

POSSIBLE CAUSE ACTION


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).

EGR malfunction Check EGR system.

Restricted exhaust Check Catalytic Converter system.

Poor or contaminated fuel Recommend higher grade fuel