Misfire/Rough Running

Check:

1. Fuel Supply
a. Fuel Injector (16)
b. Pressure Regulator
c. Contaminated Fuel
2. Electronic Air Control Valve (EACV) (14)
3. PGM-FI Control (ECU) Unit (BU)

NOTE: All items should be checked in the order in which they appear. A (number) after the component indicates the fault code associated with that system. If BU appears on with PGM-FI unit, it indicates the vehicle is running in back-up mode.