JDM MAP ECU Differences

[style86]

I have two JDM Map ECU

89661-12050 -> 05.1983 - 09.1983 (Zenki)

and

89661-12150 -> 05.1985 - 04.1987 (Kouki)

Are these two interchangable?

[style86]

Looks like its been covered here: http://www.aeu86.org/viewtopic.php?t=2779&highlight=ecu

Can someone tell me if there are differences in performance.

[Ivan141]

No difference worth bothering about... small differences in rev limit have been mentioned before.

[style86]

Can I interchange these two ECUs? I don't seen any differences in the distributor, coil/igniter, TPS Sensor between the zenki and kouki models.

[Ivan141]

You found the thread about this subject, if you have read it carefully you would have noticed that no, you can not interchange the ecu's between zenki and kouki models.. at least not for MAP sensored engines. I have tried that once already. You can always try, nothing got broken when I did, just dont be surprised if something goes wrong.