Cutlass Ciera V6-3300 3.3L MFI VIN N (1993)
INSTALLATION:
1.
Locate the idle air/vacuum signal housing assembly, with new gasket in position on the throttle body.
2.
Install idle air/vacuum signal housing screws, and tighten screws (starting in the center and moving outward) to 3.4 Nm (30 in lb).
Idle Air Control (IAC) Valve
3.
If installing a new IAC valve:
^ Measure the distance between the tip of the IAC valve pintle and the mounting flange.
^ If greater than 28 mm, use finger pressure to slowly retract the pintle. The force required to retract the pintle of a new valve will not cause
damage to the valve.
4.
Lubricate the IAC valve O-ring with clean engine oil, and install the O-ring on the IAC valve.
5.
Install the IAC valve assembly.
6.
Install the IAC valve attaching screws, and tighten to 3.0 Nm (27 in lb).
IDLE LEARN PROCEDURE: Any time the battery is disconnected, the programmed position of the IAC valve pintle is lost, and replaced with a
default value. To return the IAC valve pintle to the correct position, perform the following procedure:
1.
After restoring battery power, connect the Tech 1 "SCAN" tool.
2.
Select "IAC SYSTEM," then select "IDLE LEARN" in the "MISC TEST" mode.
3.
Proceed with idle learn as directed.
^
This procedure allows the ECM memory to be updated with the correct IAC valve pintle position, for the vehicle, and provide a stable idle
speed.
