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Home >> Honda >> 1993 >> Prelude L4-2.3L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Symptom Diagnostic Procedures >> Engine Difficult to Start When Cold
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Engine Difficult to Start When Cold

Check in the Order Listed:

1. Engine Coolant Temperature (ECT) Sensor (code 6)
2. Fast Idle Thermo Valve
3. Manifold Absolute Pressure (MAP) Sensor (code 3,5)
4. TDC/CRANK/CYL Sensor (code 4,8,9)
5. Barometric Pressure (BARO) Sensor (code 13)
6. ENGINE CONTROL MODULE (ECM) (BU)

NOTE:
(BU) code used when the MALFUNCTION INDICATOR WARNING LAMP is on. Jump the service check connector, if no code is displayed (MALFUNCTION INDICATOR WARNING LAMP stays on steady), the back-up system is in operation.

Self-diagnosis indicator, (MALFUNCTION INDICATOR WARNING LAMP) blinks (?), will follow associated systems.


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