3-32 FUEL SYSTEM (DFI)
Troubleshooting the DFI S ystem
□ very low idle speed, □ very high idle speed, □ rough idle speed.Poor running at low
speed
□ battery voltage is low (charge the battery).
□ spark plug loose (tighten it).
□ spark plug dirty, broken, or gap maladjusted (remedy it).
□ backfiring.
□ afterfiring.
□ hesitation when acceleration.
□ engine oil viscosity too high.
□ brake dragging.
□ engine overheating.
□ clutch slipping.
□ other:
□ spark plug loose (tighten it).Poor running or no
power at high speed
□ spark plug dirty, broken, or gap maladjusted (remedy it).
□ spark plug incorrect (replace it).
□ knocking (fuel poor quality or incorrect, → use high-octane gasoline).
□ brake dragging.
□ clutch slipping.
□ engine overheating.
□ engine oil level too high.
□ engine oil viscosity too high.
□ other:
