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Electronic Control Module
- 4 Cyl, 140 cid (2.3L)
  - California
  - Federal
- 6 Cyl, 232 cid (3.8L, EFI)
  - AOD transmission
  - Without AOD transmission
    - California
    - Federal
- 8 Cyl, 302 cid (5.0L)
  - California
  - Federal
Ignition Control
- 4 Cyl, 140 cid (2.3L)
- 6 Cyl, 232 cid (3.8L)
  - EEC IV
  - Without EEC IV

Engine Computer for 1984 Mercury Marquis

Fits: Ignition Control 4 Cyl, 140 cid 2.3L (change)

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