Basic Idle Speed: 3000GT
- Ensure vehicle is at normal operating temperature with all lights, cooling fan and accessories off. Shift transmission into Neutral or Park position.
- If not using scan tool, go to next step. Connect scan tool to Data Link Connector (DLC). DLC is located below dash, near steering column. See Figure. Go to step 4.
- Connect tachometer to engine. Connect a jumper wire between ground and Data Link Connector (DLC) terminal No. 1. See Figure. Disconnect waterproof female connector from Brown ignition timing check connector. See Figure. Using a jumper wire, ground ignition timing check terminal. Go to next step.
- Start engine and allow it to idle. Check basic idle speed. See IDLE SPEED SPECIFICATIONS table. If idle speed is not within specification, turn engine speed adjusting screw until correct engine speed is obtained. See Fig 1. Access to speed adjusting screw is obtained by removing rubber plug on throttle body.
- If idle speed cannot be lowered by turning engine speed adjusting screw, determine if Throttle Position (TP) sensor has been moved. Adjust TP sensor if necessary. See TP SENSOR ADJUSTMENT under THROTTLE POSITION (TP) SENSOR. If TP sensor is okay, replace throttle body.
IDLE SPEED SPECIFICATIONS
| Application |
Basic Idle |
Curb Idle |
| Diamante |
600-800 |
600-800 |
| Eclipse |
| 2.0L Non-Turbo |
|
700-900 |
| 2.0L Turbo & 2.4L |
700-800 |
650-850 |
| Galant |
| 2.4L |
650-750 |
650-850 |
| 3.0L |
650-750 |
600-800 |
| Mirage, Montero & 3000GT |
650-750 |
600-800 |
| Montero Sport |
| 2.4L |
700-800 |
650-850 |
| 3.0L & 3.5L |
700-800 |
600-800 |
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.