Idle Speed
- Ensure air filter is clean, vacuum hoses are properly routed, and timing is correct. Warm engine to operating temperature. Connect Subaru Test Mode Monitor to test mode connector. See Figure . Measure engine RPM (MODE F04).
- Measure idle speed with all accessories off, then with all accessories on. See IDLE SPEED SPECIFICATIONS table. If idle speed is not as specified, check self-diagnostic system for trouble codes. Repair as necessary. See the TESTS W/CODES article.
IDLE SPEED SPECIFICATIONS
| Application | RPM |
|---|---|
| Accessories Off | 510-710 |
| Accessories On | 750-850 |