Idle Speed: Testing and Inspection
Idle SpeedINSPECTION
1. Before checking idle speed, check the following:
1. Ensure the air cleaner element is free from clogging, ignition timing is correct, spark plugs are in good condition, and the hoses are connected properly.
2. Ensure the malfunction indicator light (CHECK ENGINE light) does not illuminate.
2. Warm-up the engine.
3. Stop the engine, and then turn the ignition switch to OFF.
4. When using the SUBARU SELECT MONITOR, refer to the following. Engine, Tools and Equipment.
1. Insert the cartridge to SUBARU SELECT MONITOR.
2. Connect the SUBARU SELECT MONITOR to data link connector.
3. Turn the ignition switch to ON, and SUBARU SELECT MONITOR switch to ON.
4. Select the {2. Each System Check} in Main Menu.
5. Select the {Engine Control System} in Selection Menu.
6. Select the {1. Current Data Display & Save} in Engine Control System Diagnosis.
7. Select the {1.12 Data Display} in Data Display Menu.
8. Start the engine, and then read the engine idle speed.
9. When using the tachometer (Secondary pick-up type).
1. Attach the pick-up clip to No. 1 cylinder spark plug cord.
2. Start the engine, and then read the engine idle speed.
NOTE:
^ When using the OBD-II general scan tool, carefully read its operation manual.
^ This ignition system provides simultaneous ignition for #1 and #2 plugs It must be noted that some tachometers may register twice that of actual engine speed.
6. Check the idle speed when unloaded. (With headlights, heater fan, rear defroster, radiator fan, air conditioning, etc OFF)
Idle speed (No load and gears in neutral (MT vehicles), or N or P (A T vehicles) position): 650+100 rpm (MT vehicles) 700+100 rpm (AT vehicles)
7. Check the idle speed when loaded. (Turn the air conditioning switch to "ON" and operate the compressor for at least 1 minute before measurement.)
Idle speed [A/C "ON", no load and gears in neutral (MT vehicles) or N or P (A T vehicles) position]: 850+100 rpm
NOTE: Idle speed can not be adjusted manually, because the idle speed is automatically adjusted.
If the specified idle speed can not be maintained, refer to General On-board Diagnosis Table under "Engine Control System".