Engine Difficult to Start When Cold

SYMPTOM: Difficult To Start Cold.

CHECK
1. Electronic Control Unit (**)
2. Coolant Temperature Sensor (6)
3. Other Idle Controls
4. Manifold Absolute Pressure Sensor (3) (5)

Numbers in parentheses are the blink codes displayed on back of the ECU. (**) LED on the ECU is not on, or stays on without blinking. Notes on Reading Diagnostic List For ECU trouble code component testing procedures see Computers and Control Systems.