Lack of Power, Sluggish, or Spongy

Definition: Engine delivers less than expected power. Little or no increase in speed when accelerator pedal is pushed down part way.
^ Perform careful visual check as described at start of Section B.
^ Compare customer's car to similar unit. Make sure the customer's car has an actual problem.
^ Remove air cleaner and check air filter for dirt, or for being plugged. Replace as necessary.
^ CHECK:

- For loose or leaking air duct between
MAF Sensor and throttle body.
- Ignition timing. See Emission Control Information label.
- Restricted fuel filter, contaminated fuel or improper fuel pressure. See CHART A-7.
- EGR operation for being open or partly open all the time - CHART C-7.
- Exhaust system for possible restriction:
- Inspect exhaust system for damaged or collapsed pipes.
- Inspect muffler for heat distress or possible internal failure.
- Generator output voltage. Repair if less than 9 or more than 16 volts.
- Engine valve timing and compression.
- Engine for proper or worn camshaft. See
Section 6A.
- Secondary voltage using a shop ocilliscope or a spark tester J-26792 (ST-125) or equivalent.