Idle Speed: 3.0L
- Before checking idle speed, check the following: Ensure that air cleaner element is free from clogging, ignition timing is correct, spark plugs are in good condition, and that hoses are connected properly. Ensure that malfunction indicator light (check Engine light) does not illuminate.
- Warm-up the engine.
- Stop the engine, and turn ignition switch to OFF.
- When using Subaru Select Monitor: Insert the cartridge to Subaru Select Monitor. Connect Subaru Select Monitor to the data link connector located on the left side of the dash, under the hood release lever. Turn ignition switch to "ON", and Subaru Select Monitor switch to "ON". Select "2. Each System Check" in Main Menu. Select "Engine Control System" in Selection Menu. Select "1. Current Data Display & Save" in Engine Control System Diagnosis. Select "1.12 Data Display" in Data Display Menu. Start the engine, and read engine idle speed.
- Check idle speed when unloaded. With headlights, heater fan, rear defroster, radiator fan, air conditioning, etc. "OFF".
- Check idle speed when loaded. Turn air conditioning switch to "ON" and operate compressor for at least one minute before measurement. See IDLE SPEED SPECIFICATIONS table.
NOTE:
When using the OBD-II general scan tool, carefully read its operation manual. This ignition system provides simultaneous ignition for No. 1 and No. 2 plugs. It must be noted that some tachometers may register twice that of actual engine speed.
CAUTION:
Idling speed cannot be adjusted manually because of automatic adjusting system. If idle speed is out of specifications, see General On-Board Diagnosis in appropriate BASIC DIAGNOSTIC PROCEDURES article.
IDLE SPEED SPECIFICATIONS
| Application | RPM | ||
|---|---|---|---|
| 3.0L | |||
| With A/C Off | |||
| A/T | 600 +/- 50 | ||
| With A/C On | 700 +/- 50 | ||