Cutlass Ciera Cruiser V6-173 2.8L (1987)
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Install Mem-Cal in Mem-Cal socket.
CAUTION: Press only on the ends of the Mem-Cal. Small notches in the Mem-Cal must be aligned with the small notches in the Mem-Cal
socket.
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Press on the ends of the Mem-Cal until the retaining clips snap into the ends of the Mem-Cal.
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DO NOT press on the middle of the Mem-Cal, only on the ends.
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Install access cover on ECM.
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Install ECM in passenger compartment.
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Reconnect connectors to ECM.
FUNCTIONAL CHECK
Turn ignition ON.
Enter diagnostics.
Code 12 should flash four times (If no other codes are present). This indicates the Mem-Cal is installed properly and the ECM is functioning.
If trouble Codes 41, 42, 43, 51 or 55 occur, or if the Service Engine Soon light is ON constantly with no codes, the Mem-Cal is not fully seated or
is defective.
If not fully seated, press firmly on the ends of the Mem-Cal.
If it is necessary to remove the Mem-Cal, follow the previous removal instructions.
IDLE LEARN PROCEDURE
Before starting engine, follow the "Idle Learn Procedure" as follows:
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Install Tech 1 Scan tool.
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Ignition ON, engine OFF.
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Select Intake Air Control (IAC) SYSTEM, then IDLE LEARN in the MISC TEST mode.
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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 provides for a stable idle
speed.
