Lack of Power, Sluggish

Definition: Engine delivers less than expected power. Little or no increase in speed, when accelerator pedal is pushed down part way.

POSSIBLE CAUSE ACTION

Contaminated fuel Drain fuel tank and add clean fuel

Lead contamination Check for missing fill pipe restrictor
of catalytic converter Replace catalytic converter

Low fuel pressure Check fuel pressure

Pinched or collapsed fuel hose/line Repair/replace as required

Throttle valve not fully opening Check accelerator pedal travel
(Floor mat/carpet interference)
Check throttle cable adjustment

Dirty air filter Clean or replace

Plugged or restricted fuel injector(s)
Poor injector spray pattern Check fuel injectors