New OEM Genuine Honda ECM Engine Control Module - new in the box, never installed. 

Fits: 1988-1989 Civic 1.5 motor models, auto transmission, without 4 wheel drive.

Number on the part must be one of the following:
​​​​​​​37820-PM5-A55, 37820-PM5-A58, 37820-PM5-305, 37820-PM5-F51, 37820-PM5-A52, 37820-PM5-F50, 37820-PM5-A51, 37820-PM5-A56, 37820-PM5-A91, 37820-PM5-A56, 37820-PM5-F50, 37820-PM5-A57, 37820-PM5-A54, 37820-PM5-A53