Lack of Power

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

POSSIBLE CAUSE ACTION



Spark timing - excessive retard Refer to COMPUTERS AND CONTROL SYSTEMS.



Initial timing incorrect Refer to COMPUTERS AND CONTROL SYSTEMS.


Restricted exhaust Check Catalytic Converter. Refer to TESTING PROCEDURES.



Poor or contaminated fuel Recommend higher grade fuel



EVAP system malfunction Check EVAP system. Refer to TESTING PROCEDURES.