Since '85, our cars have had 8 different ECUs installed. 5 for the ESI series, and 3 for the LE series. They are as follows:
| ESI/TSI Series |
|
| Part Number | Production Dates | Part Number | Production Dates |
| MD120197 | 06/87-Finish | MD111820 | 06/86-05/87 |
| MD106394 | 06/86-05/87 | MD110005 | 02/86-05/86 |
| MD110007 | 02/86-05/86 | MD101175 | 06/85-01/86 |
| MD101177 | 10/85-01/86 | ||
| MD090798 | 12/84-09/85 |