Here is what I could find on what cars had eprom.
1990
* Inagural model year of the DSM
* Pop-up headlights
* Some high-end models had wheel covers
* All ECUs had EPROMS
* Front brakes change during the model year
* 1.8L models have the 4G37 engine, all others have the 4g63 engine
1991
* ECU changes mean that 1991+ ECUs don't operate the 1990 tachometer correctly
* Most ECUs had EPROMS
* First model year with ABS available. ABS not available with limited-slip differential (LSD)
* All high-end models had alloy or mesh wheels
* First year of the Galant VR-4
1992
* Non-popup headlights introduced on all models
* The first AWD Lasers were introduced
* Few (or no) ECUs have EPROMS
* ABS now available with LSD
* The engine changes from the 6-bolt version to the 7-bolt version in April
* Second and final year of the Galant VR-4
1993
* Big Brake Kit, 2-piston front calipers become standard on turbo models
* 7-bolt engines are now standard
* No ECUs have EPROMS
* Diamond-Star Motors ceases to exist
1994
* All cars built to California emissions standards
* The last year of the 1G car and the 1.8L NT models
* The last year of the Plymouth Laser
1995
* The inagural year of the 2G DSM
* Significant changes to the engine, body, and electronics
* New transmissions
* All ECUs have EPROMS
* Non-turbo models are based on the Chrysler 420A engine instead of the Mitsubishi 4G63 engine.
* OBD-II becomes standard on DSMs, along with two oxygen sensors
* Mitsubishi begins using some substandard crankshafts, leading to crank walk
1996
* The first year of the convertible Spyder
* The Mitsubishi 4G64 engine is offered in the Spyder models only
* ECUs stop having EPROMS
1997
* Additional body changes from the 1995/1996 models
* Minor changes to the ECU code
1998
* Minor changes to the ECU code
* After many years, Mitsubishi issues a recall on the AWD DSM transfer case
* The last year of the Eagle Talon
1999
* The last year of the 2G car, and of the 4G63/AWD DSM platform
There we go guys, i hope this helps, if you have any problems or questins with this, let me know.
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