wire harness and ecu replacement

[-$MOKIN-]

I am going to the junkyard to get a ecu and a wire harness saturday and i need to know if i get this ecu from this 89 a20a3 2 door stick if it will work on my 89 a20a3 4 door automatic. PLEASE HELP =):flash:

[Pico]

I used my A/T ECU when I did my 5 speed swap, not sure if it works the other way around.
Someone on here should be able to answer the question

[EricW]

The harness will work, But it won't have the wires for the shifter and most likely the wires for the rear doors(power locks, windows, light, door switches). I believe that is all of the differences.

[MessyHonda]

your best bet is to use the same year and trans ECU

[AccordB20A]

doesnt the auto box has its own ecu anyway so he can leave that year and use a manual engine ecu it will still work the same right.
run the efi loom standalone if u have too ha

[-$MOKIN-]

I Found The Right Ecu For The Car. I Did Get It And Replace It. The Old Ecu Would Just Blink Once. The New One Was Blinking 12 Times And I Found That I Had A Egr Vacumn Line Wrong. Quick Fix So No More Check Engine Light. It Still Didnt Fix My Sub Cooling Fan From Comming On.



I did not do the engine wire harness..