LT-FLASH

Keeping LT1 PCMs alive, one flash at a time.

96/97 LT-UNBRICK Binary Repository

For comparisons, research, baseline reference tunes, and repairing failed flashes with LT-UNBRICK, this page contains stock GM calibrations for 1996–1997 LT1 applications that I have found, verified, and organized.

The “Latest Cal” column shows the newest known GM calibration for that application. The “Previous Cals” column lists older GM calibrations that were superseded by later updates, with the newest previous calibration listed first and the oldest listed last.

The 1996–1997 LT1 applications are organized by GM body platform, model year, transmission, axle ratio, and special package where applicable. These include F-body Camaro, Firebird, and Trans Am applications, 1996 Y-body Corvette LT1 applications, 1996 B-body Caprice, Impala SS, and Buick Roadmaster applications, and 1996 D-body Cadillac Fleetwood and commercial chassis applications.

All files listed here are intended to represent stock GM calibration files. This repository was built to help preserve original LT1 calibration data and to make it easier to recover, compare, or restore a PCM using LT-UNBRICK. These files can also be used with TunerPro and the supplied XDF to compare a stock calibration against your current calibration, making it easier to see what has been changed from the original GM file.

In addition to recovery and comparison use, these stock files can be programmed into fully functioning PCMs using LT-FLASHv2.

This list is still a work in progress. Some applications are based on GM calibration data, VIN testing, factory RPO information, and verified stock binary files. If you have additional stock EE bins, missing calibration numbers, VIN-confirmed applications, or corrections, please contact me.

Body Code Key

BodyPlatform
YCorvette LT1/LT4
FCamaro / Firebird / Trans Am
BCaprice / Impala SS / Buick Roadmaster
DCadillac Fleetwood / Commercial Chassis

Y-Body — Corvette

Latest CalPrevious CalsYearDrivetrainNotes
16231501NONE1996AUTO 2.59
16229971NONE1996AUTO 3.07PERFORMANCE AXLE
16230041 NONE1996MANUAL 3.45LT4

F-Body — Camaro / Firebird / Trans Am

Latest CalPrevious CalsYearDrivetrainNotes
16242261162301011996AUTO 2.73
16242281162301211996AUTO 3.232G1FP22P3
T2152247
16230141NONE1996MANUAL 3.422G1FP22P0
T2149046
16257671162362511997AUTO 2.73FEDERAL EMISSION CERTIFICATION,
2G1FP32P3
V2154699
16257691162362711997AUTO 3.23FEDERAL EMISSION CERTIFICATION,
2G1FP22P5
V2114005
16257721162362811997MANUAL 3.42FEDERAL EMISSION CERTIFICATION,
2G1FP32P6
V2141221

B-Body — Caprice / Impala SS / Buick Roadmaster LT1 5.7L

Latest CalPrevious CalsYearDrivetrainNotes
939489116235331, 162299911996AUTO 2.56CAPRICE, 1G1BL82P4
TR102323
939492116235351, 162299211996AUTO 2.56BUICK ROADMASTER, 1G4BR82P3
TR415686
9394921 16235351, 162299211996AUTO 2.93CAPRICE, BUICK ROADMASTER, B4U, V92 TOW PACKAGE, 1G1BL52P2
TR125338
939493116235361, 162299811996AUTO 3.08IMPALA SS, 1G1BL52P3
TR112470
939494116242951, 162299511996AUTO 3.08CAPRICE, 9C1 POLICE 147MPH LIMIT, 1G1BL52P9
TR155498

B-Body — Caprice L99 4.3L

Latest CalPrevious CalsYearDrivetrainNotes
 939486116235311, 162311011996AUTO 2.93L99 4.3L CAPRICE, 1G1BL52W5
TR126376
 939487116245591, 162310811996AUTO 3.23L99 4.3L CAPRICE, 1G1BL52W2
TR186373

D-Body — Cadillac Fleetwood / Commercial

Latest CalPrevious CalsYearDrivetrainNotes
939489116235331, 162299911996AUTO 2.56CADILLAC FLEETWOOD, 1G6DW52PX
TR707391
939491116253681, 16236651, 162299311996AUTO 2.93CADILLAC FLEETWOOD, B9Q HEARSE, COMMERCIAL, 1GEFH90PX
TR708865
1624391116230461, 162284511996AUTO 3.42CADILLAC FLEETWOOD, V4P TOW PACKAGE, 1G6DW52P3
TR707281,
939495116242231, 16230451, 162283911996AUTO 3.42CADILLAC FLEETWOOD, V4P TOW PACKAGE, 1G6DW52P2
TR715064