Montero 4WD V6-2972cc 3.0L SOHC (1991)
Idle Speed: Adjustments
Idle Speed Adjustment
BASIC IDLE SPEED ADJUSTMENT
NOTE
^ The standard idling speed has been adjusted, by the speed-adjusting screw (SAS), by the manufacturer, and there should usually be no need for
readjustment.
^ The adjustment, if made, should be made after first confirming that the spark plugs, the injectors, the idle- speed control servo, the compression
pressure, etc. are all normal.
(1) The vehicle should be prepared as follows before the inspection and adjustment.
^ Engine coolant temperature: 85 - 95°C (185 - 2O5°F)
^ Lights and accessories: OFF
^ Transmission: neutral (P for vehicles with automatic transmission)
^ Steering wheel: neutral position
(2) If the multi-use tester is used, connect it to the diagnosis connector.
NOTE: When the multi-use tester is connected, the diagnosis/data-transfer switching terminal is grounded.
(3) If the multi-use tester is not used, follow the steps below.
(1) Insert a paper clip (from the harness side) into the 1-pin connector shown in the figure. Take care not to disconnect the connector.
Caution: The paper clip should be inserted between the terminals as shown in the figure above.
(2) Connect a primary voltage detection type of tachometer to the paper clip.
