Fails Emissions Test

Check:

1. Emission Control System
a. Catalytic Converter
b. Positive Crankcase Ventilation (PCV) System
c. Exhaust Gas Recirculation (EGR) System (12)
2. Fuel Supply
a. Pressure Regulator
b. Fuel Injector (16)
c. Fuel Injector Resistor
3. Manifold Absolute Pressure (MAP) Sensor (3)(5)
4. Fuel Metering (43)(44) and (45)(46)
5. Heated Oxygen (HO2S) Sensor (1)(2) and (41)(42)
6. PGM-FI Control (ECM) 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.