Tracker 4x4 L4-1.6L VIN 6 (1995)
Idle Speed Settings
IDLE SPEED / IDLE AIR CONTROL (IAC) DUTY ADJUSTMENT
IMPORTANT: Before starting engine place manual selector in "P" (automatic transmission) or place gearshift control lever in neutral (manual
transmission) and set parking brake and block drive wheels.
PROCEDURE
1. Check accelerator cable for free movement and excessive play; cable play should be within specification. Refer to Throttle Cable/Linkage under
Fuel Delivery and Air Induction.
2. Inspect lead wires and hoses of the Sequential Multiport Fuel Injection (SFI) and Evaporative Emission (EVAP) control systems for being
connected securely.
3. Check ignition timing, and adjust if necessary. Refer to Ignition System / Adjustments.
4. Turn "OFF" all accessories (A/C, wipers, heater, lights, etc).
5. Make sure Air Cleaner (ACL) is installed correctly.
6. Remove cover on idle speed adjusting screw (refer to image).
ADJUST
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Start engine and allow it to reach normal operating temperature (accessories "OFF").
1. Connect Tech 1 scan tool (note ENGINE SPEED and ISC ADJUST MONIT displays on scan tool).
2. Connect a jumper from diagnostic request terminal "2" in the Duty Check Data Link Connector (DLC) to ground terminal "4" (refer to image).
3. Check idle speed and IAC duty. IAC duty should read 50% with correct engine idle speed. Refer to image for idle speed specifications.
4. Adjust idle speed as necessary. Correct idle speed by turning Idle Speed/Idle Air Control duty adjusting screw.
5. Remove jumper from duty check DLC.
6. Disconnect Tech 1 scan tool.
7. Install idle speed/Idle Air Control duty adjusting screw cover.
8. Check that specified idle speed is obtained with A/C "ON," if vehicle is equipped with A/C. If idle speed is not as specified, check A/C idle-up
circuit and IAC valve circuit.
