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BASIC IDLE SPEED ADJUSTMENT
NOTE: The standard idle speed has been adjusted, by the engine speed adjusting screw, by the manufacturer, and there should usually be no need for readjustment.
NOTE: The adjustment, if made, should be made after first confirming that the spark plugs, the injectors, the idle air 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: 80 - 95°C (176 - 203°F)
•Lights, cooling fan and accessories: OFF
•Transaxle: P range
2.Connect the scan tool to the data link connector (16-pin)
NOTE: When the scan tool is connected, the diagnostic test mode control terminal should be grounded.
3.Start the engine and run at idle.
4.Select the item No. 30 of the MUT-II ACTUATOR TEST.
NOTE: This holds the ISC servo at the basic step to adjust the basic idle speed.
5.Check the idle speed.
Standard value: 700 ± 100 r/min
NOTE: The engine speed may be 20 to 100 r/min lower than indicated above for a new vehicle [driven approximately 500 km (300 mile) or less], but no adjustment is necessary.
NOTE: If the engine stalls or the rpm is low even though the vehicle has been driven approximately 500 km (300 mile) or more, it is probable that deposits are adhered to the throttle valve, so clean it. (Refer to .) |