Poor Fuel Economy

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

POSSIBLE CAUSE ACTION


Ignition timing Check Ignition Timing in "Adjustment
Procedures" in Emissions



Spark timing Check Spark Controls in
"Testing Procedures" in Emissions



Air management valves Check Air Injection system in
"Testing Procedures" in Emissions



Restricted exhaust Check Catalytic Converter in
"Testing Procedures" in Emissions