Laser FWD L4-1997cc 2.0L DOHC Turbo (1993)
Idle Speed: Adjustments
Base Idle Speed Adjustment
Notes:
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Idle speed was adjusted by the manufacturer. There should be no need for readjustment--unless the original setting has been tampered with.
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Verify proper engine operation--spark plugs, injectors, idle air control motor, compression pressure are all normal prior to adjusting idle speed.
1. The vehicle should be prepared as follows before the inspection and adjustment.
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Engine coolant temperature: 85-95°C (185-205°F)
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Lights, electric cooling fan and accessories: OFF
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Transaxle: Neutral (P for vehicles with an automatic transaxle)
2. Connect a scan tool to the data link connector.
Note: When scan tool is connected, the diagnostic test mode control terminal is grounded.
3. If a scan tool is not used, follow the steps below.
a. Insert a paper clip (from the harness side) into the 1-pin connector shown in the figure at the left.
b. Connect a primary-voltage-detection type of tachometer to the paper clip.
Note: For rpm, one-half of the actual engine rpm is indicated, so the actual engine rpm in two times the indicated value shown by the tachometer.
c. Use a jumper wire to ground the diagnostic test mode control terminal of the data link connector.