Engine Difficult to Start When Cold

SYMPTOM:
Engine Difficult To Start When Cold

Check:
1. Coolant Temperature (TW) Sensor (6)
2. Fuel Supply
a. Fuel Filter
b. Fuel Pump
c. Fuel Injector (16)
3. Idle Control System
a. Electronic Air Control Valve (14)
b. Idle Adjusting Screw
4. Manifold Absolute Pressure (MAP) Sensor (3)(5)
5. 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.