Poor Fuel Economy

Fuel economy is noticeably lower than expected. Customer detects a significant reduction in fuel mileage.

POSSIBLE CAUSE ACTION

Incorrect distributor installed position See Adjustments.



Electronic spark timing
insufficient spark advance Refer to Computers and Control Systems.


Restricted exhaust See Three Way Catalytic Converter


Poor or contaminated fuel Recommend higher quality fuel



EVAP system malfunction See Evaporative Emission Control System