Engine Difficult to Start When Cold

SYMPTOM
Engine Hard to Start When Cold

Check:
1. Coolant Temperature (TW) Sensor (6)
2. Idle Control System
a. Electronic Air Control Valve (EACV) (14)
b. Idle Adjusting Screw
3. Fuel Supply
a. Fuel Injector (16)
b. Fuel Filter
c. Pressure Regulator
4. Air Intake System
a. Tandem Control System
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.