Fails Emission Test

SYMPTOM
Fails Emission Test

Check:
1. Fuel Supply
a. Fuel Injector (16)
b. Pressure Regulator
2. Idle Control System
a. Hoses and Connections
3. Emission Control System
a. Positive Crankcase Ventilation (PCV) System
b. Catalytic Converter
4. Oxygen Sensor (1)
5. Manifold Absolute Pressure (MAP) Sensor (3)(5)
6. PGM-FI Control (ECU) Unit (BU)

NOTE:
After each symptom, the system that could be the source of the symptom are listed and should be checked in the order they are listed, beginning with #1.

(BU) code used when the CHECK ENGINE warning light is on, and the self-diagnosis indicator LED is ON with no "blinks", the back-up system is in operation.

Self-diagnosis indicator, (LED) blinks (?), will follow associated systems.