Montero LS 4WD V6-2972cc 3.0L SOHC 12 Valve (1994)
Idle Speed: Adjustments
Idle Speed Adjustment
Introduction to Idle Speed Adjustment:
Adjustment is not normally required. The idle speed is adjusted automatically by the Idle Air Control (IAC) system. If there is a deviation from the
specified value refer to the adjustment procedure below. If the adjustment procedure does not eliminate the idle problem, refer to the component
tests in the Fuel Delivery and Air Induction section for information on diagnosis of the Multiport Fuel Injection components.
Standard Curb Idle Speed: 7OO ±1OO rpm
Idle Speed Adjustment Procedure
1. The basic idle speed has been factory-adjusted with the engine speed adjusting screw and does not normally require adjustment.
2. If the adjustment has been disturbed, the idle speed is too high or the idle speed drops because a load such as that from the air conditioning is
being applied to the engine, try carrying out adjustment by the following procedure.
3. If adjustment is required, first check that the ignition plug, injector, idle air control motor, and compression pressure are normal.
NOTE:Before starting the inspection and adjustment procedures, set the vehicle in the following conditions:
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Engine coolant temperature: 80-95°C (176-203°F)
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Lights and all accessories: OFF
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Transmission: Neutral (P for A/T)
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Steering wheel: Straight-forward position
Connect the scan tool to the data link connector (white)
NOTE: If not using the scan tool proceed as follows:
1. Insert the paper clip into the female side of the 1-pin connector as shown in the illustration. Do not disconnect the connector at this time.
2. Connect a primary voltage-detecting tachometer to the paper clip.
