PCM Identification

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OBD2 is below but not typed out (and therefore not searchable).

All of the IDs are in decimal. So fire up your windows calculator and convert them to hexadecimal if you're comparing them to something such as an EFILive dump.

The PROMs across the models (SCx, SLx, SWx) do not change from anything I have seen. I believe this to be the same with the EEPROMs, but I am not sure. --Emailer33 19:59, 14 June 2006 (EDT)

1991 SOHC(LKO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
1440 988 EC Stalls/Hesitates Camshaft 21022374 1582
1442 988 EC Stalls/Hesitates Idler Gear Noise/Cam 21022374 4960
1578 3686 EC Lack of Power - EC Flag 53 21021221 1582
1579 3686 EC Lack of Power - EC Flag 53 Idler Gear Noise 21021221 4960
1312 3686 EC Start/Stall Complaint 21021221 1582
1316 3686 EC Start/Stall Complaint and Trans Idler Gear Noise 21021221 4960
4957 3686 EC Superceded by EC Calibration 1579 21021221 4960
1291 3686 EC Early 1991 PCM With TC EPROM 4666 21020807 1292

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
1582 1465 TC Production Trans Calibration 21021221
4960 1465 TC Trans Idler Gear Noise 21021221
1292 4666 TC Early 1991 PCM 21020807

1991 SOHC(LKO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
1438 988 EC Stalls/Hesitates Camshaft 21006395 21022373
1580 3686 EC Lack of Power - EC Flag 53 21020806
1309 3686 EC Stall on Launch 21020806
7306 3686 EC Superceded by EC Calibration 1580 21020806

1991 DOHC(LLO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
1289 3686 EC Production EC Calibration 21022155 9408, 1578, 0246
4961 3686 EC EC Calibration for Trans Idler Gear Noise 21022155 9412, 4964
6222 6123 EC MY Emissions Campaign 21021470 2548

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
9408 0139 TC Harsh 1-2 Upshift 21022155
9412 0139 TC Harsh 1-2 Upshift and Trans Idler Gear Noise 21022155
1578 1465 TC Production TC Calibration
4964 1465 TC Trans Idler Gear Noise
0246 4666 TC Early 1991 PCM 21020809
2548 6126 TC MY Emissions Campaign 21021470

1991 DOHC(LLO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
0337 3686 EC Production EC Calibration 21020808
6215 5403 EC MY Emissions Campaign 21022920

1992 SOHC(LKO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
3184 6123 EC Stalls during Warm-up 21021469 8518, 0749
0748 6123 EC Production EC Calibration 21021469 8518, 0749
8678 6123 EC Superceded by EC Calibration 0748 21022078 8673

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8518 7632 TC TC Calibration 2nd Design Valve Body 21022078
0749 6126 TC Production Calibration 21021469
8673 6126 TC Superceded by TC Calibration 0749 21021469

1992 SOHC(LKO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
3182 6123 EC Stall during Warm-up 21021467
0740 6123 EC Production Calibration 21021467
8672 6123 EC Superceded by calibration 0740 21021467

1992 DOHC(LLO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
3185 6123 EC Start/Stall, Hesitates, Surges (Superceded by EC2303) 21022079 8520, 2548
8488 6123 EC Production EC Calibration (Superceded by EC2303) 21021470 8520, 2548, 0753
2303 6123 EC Stalls, Hesitates, Surges 21022079, 21021470 8520, 2548

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8520 7632 TC TC Calibration, 2nd Design Valve Body 21022079
2548 6126 TC Harsh Reverse Engage 21021470
0753 6126 TC Superceded by TC Calibration 2548 21021470

1992 DOHC(LLO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
3183 6123 EC Start-Stall Hesitates, Surges (Superceded by 2303) 21021468
8676 6123 EC Production EC Calibration (Superceded by 2303) 21021468
2303 6123 EC Stall, Hesitates, Surges 21021468

1993 SOHC(LKO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7383 2313 EC VIN PZ156140 and Higher Federal Emissions 21021856 7386
7393 2313 EC VIN PZ156140 and Higher California Emissions 21021856 7386
3982 2313 EC SSV EC Calibration Federal Emissions 21021856 3924, 8198
3984 2313 EC SSV EC Calibration California Emissions 21021856 3924, 8198

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7386 3511 TC VIN PZ156140 and Higher MP6 Second Design 21021856
8198 3511 TC Improved Start-up Adaptives MP6 First Design 21021856
3294 3511 TC SSV TC Calibration MP6 First Design - Superceded by 8198 21021856

1993 SOHC(LKO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7379 2313 EC VIN PZ160920 and Higher Federal Emissions 21021854
7388 2313 EC VIN PZ160920 and Higher California Emissions 21021854
3288 2313 EC SSV EC Calibration Federal Emissions 21021854
3322 2313 EC SSV EC Calibration California Emissions 21021854

1993 DOHC(LLO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
3534 2313 EC Hesitates/Stalls on Launch Federal Emissions 21021857 8201
3536 2313 EC Hesitates/Stalls on Launch California Emissions 21021857 8201
3981 2313 EC SSV EC Calibration Federal Emissions (Superceded by 3534) 21021857 8201, 3297
3983 2313 EC SSV EC Calibration California Emissions (Superceded by 3536) 21021857 8201, 3297

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8201 3511 TC Improved Start-up Adaptives 21021857
3297 3511 TC SSV TC Calibration (Superceded by 8201) 21021857

1993 DOHC(LLO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
3291 2313 EC SSV EC Calibration Federal Emissions 21021855
3325 2313 EC SSV EC Calibration California Emissions 21021855

1994 SOHC(LKO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7454 7413 EC SSV EC Calibration (Superceded by 1394) 21022420 7449
1394 7413 EC Hesitation on Acceleration 21022420 7449

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7449 7416 TC SSV TC Calibration (Superceded by 1394) 21022420

1994 SOHC(LKO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7448 7413 EC SSV EC Calibration (Superceded by 1392) 21022418
1392 7413 EC Engine Missing 21022418

1994 DOHC(LLO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7456 7413 EC SSV EC Calibration Federal Emissions 21022421 7457
7462 7265 EC SSV EC Calibration "NB6" Emissions (California, New York) 21022423 7457

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7457 7416 TC SSV TC Calibration 21022421

1994 DOHC(LLO) / Manual Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
7452 7413 EC SSV EC Calibration Federal Emissions 21022419
7459 7413 EC SSV EC Calibration "NB6" Emissions (California, New York) 21022422

1995 SOHC(L24) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
0582 7717 EC SSV EC Calibration Federal Emissions (Superceded by 8905) 21021306 8488
0584 7717 EC SSV EC Calibration "NB7" Emissions (Superceded by 8907) 21021306 8488
8907 7717 EC DTC 32 LEGR "NB7" Emissions (Superceded by 3810) 21021306 8488
8905 7717 EC DTC 32 LEGR Federal Emissions (Superceded by 3832) 21021306 8488
3810 7717 EC DTC 45 O2 "NB7" Emissions 21021306 8488
3810 7717 EC DTC 45 O2 Federal Emissions 21021306 8488

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8488 7721 TC SSV TC Calibration 21021306

1995 SOHC(L24) / Manaul Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
0577 7717 EC SSV EC Calibration Federal Emissions(Superceded by 8904) 21021304
0583 7717 EC SSV EC Calibration "NB7" Emissions (Superceded by 8906) 21021304
8906 7717 EC DTC 32 LEGR "NB7" Emissions 21021304
8904 7717 EC DTC 32 LEGR Federal Emissions 21021304

1995 DOHC(LLO) / Automatic Transaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8494 7717 EC SSV EC Calibration (Superceded by 8903) 21021307 8495
8903 7717 EC DTC 32 LEGR and DTC 24 VSS (High Altitude) 21021307 8495

TCM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8495 7721 TC SSV TC Calibration 21021307

1995 DOHC(LLO) / ManualTransaxle

ECM

EEPROM Id EPROM Id Type Description of Modification Service Part # PCM/TC EEPROM Pairs
8484 7717 EC SSV EC Calibration (Superceded by 8902) 21021305
8902 7717 EC DTC 32 LEGR and DTC 24 VSS (High Altitude) 21021305

OBD2

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