Frequent Stalling During Engine Warm-Up

SYMPTOM
Frequent Stalling During Warm-up

Check:
1. Electronic Air Control Valve (EACV) (14)
2. Idle Adjusting Screw
3. Fuel Supply
- Fuel Injector
- Fuel Filter
- Fuel Pump
4. ECU (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.