Surge, Hesitation, Stall on Acceleration

Engine hesitates or stumbles on acceleration, sometimes stalling. This condition can occur at any speed, but primarily from a stop. Vehicle may also experience a surge or rise and fall of engine speed at cruise or steady throttle.

POSSIBLE CAUSES

Faulty Canister Purge, Liquid Fuel In Carbon Canister
- Check Evaporative system in "Testing Procedures"

Ignition Timing
- Check Ignition Timing in "Adjustment Procedures"

Restricted Exhaust System
- Check Catalytic Converter system in "Testing Procedure"

Poor or Contaminated Fuel
- Recommend higher grade fuel