Accord L4-2156cc 2.2L SOHC (1991)
Idle Speed: Testing and Inspection
Rough Idle
Check:
1. Electronic Air Control Valve (EACV) (14)
2. Fuel Injectors (16)
3. Other Idle Controls
a. Hoses and Connections
4. Exhaust Gas Recirculation System (EGR) (12)
5. Manifold Absolute Pressure (MAP) Sensor (3)(5)
6. Electronic Control Unit (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.
Self-diagnosis indicator, (LED) blinks (?), will follow associated systems.
