Tempo L4-140 2.3L CFI (1985)
Retract the ISC Motor:
^
Shut engine Off and remove air inlet tube from throttle body. In the engine compartment, find the Self-Test connector and Self-Test input
connector.
Figure 6
^
Connect a jumper wire between the SelfTest input connector and the signal return pin on the Self-Test connector, Figure 6.
^
Turn the ignition key to the "Run" position. DO NOT START ENGINE.
^
The ISC plunger will retract. Wait until plunger is fully retracted (about 5 to 15 seconds).
NOTE:
If plunger does not retract, refer to EEC IV diagnostics.
^
Return the ignition key to the "Off" position; wait 10 to 15 seconds.
^
Remove the jumper wire.
Figure 7
^
Disconnect the ISC motor from the wire harness, Figure 7.
Perform Throttle Hard Stop Adjustment:
^
Remove throttle body from vehicle.
^
Remove the Welch plug which covers the throttle stop adjusting screw, Figure 7.
^
Remove and replace screw if loose.
^
Reinstall throttle body on vehicle, check electrical connectors, start engine, let engine stabilize, and set the idle RPM, ^ Reconnect the ISC
motor to wire harness, Figure 7.