PCM Calibration

IMPORTANT:
Before installing a new calibration, make a note of the transaxle calibration installed and download the same transaxle calibration with the correct new engine calibration.The new service PCM calibrations are:

1991 New Calibration (SOHC [LKO] Engines)
1309 Manual Transaxle
1312 Automatic Transaxle (Production release)
1316 Automatic Transaxle (Use when idler gear
noise calibration is installed)

IMPORTANT:
Refer to Technical Service Bulletin 93-T-05, "SOHC (LKO) Engine Stalls or Hesitates During Open to Closed Loop Transition at Cold Temperatures" for additional information on 1991 SOHC (LKO) engine.

IMPORTANT:
This calibration will replace the production calibration. The service stall system screen should read "EC Calibration Start/Stall Only."

Only vehicles built with the latest PCM can be reprogrammed with the new calibration. Vehicles with earlier versions of the PCM require replacement of the PCM before reprogramming.

To determine if the PCM can be reprogrammed with this service calibration, check the TCM ID TABLE with the portable diagnostic tool (PDT) or the service stall system. If the TC EPROM SW ID is 4666, the PCM will have to be replaced. The new version of the PCM will have a TC EPROM SW ID of 1465.

If the PCM has to be replaced, refer to the "Powertrain Control Module" removal and installation procedures in the "Powertrain Control Module" section of the "Electronic Engine Controls Service Manual."

If the TC EPROM SW ID is 1465, refer to "Reprogramming EEPROM" in the "System Utilities" section of the "Service Stall System (SSS) User Guide" for procedures on reprogramming with the service calibration.

1992 New Calibration (SOHC [LKO] Engines)
0740 Manual Transaxle (Production Release)
0748 Automatic Transaxle (Production release)

IMPORTANT:
These calibrations will replace the early production 1992 calibrations. The service stall system screen should read "EC Calibration-Superseded In Production."