Si ECU into 90 DX?
Former Moderator
Joined: Oct 2001
Posts: 16,612
Likes: 55
From: Southside ATL, GA
Re: Si ECU into 90 DX? (rightandtight)
Check engine lights.
Si is a multi point fuel injection system, while your engine only has dual point injection.
The pin-outs are also completely different, so you'll get crank angle codes and won't be able to rev over 2500rpm or so if it even runs.
In short, no.
Si is a multi point fuel injection system, while your engine only has dual point injection.
The pin-outs are also completely different, so you'll get crank angle codes and won't be able to rev over 2500rpm or so if it even runs.
In short, no.
Honda-Tech Member
Joined: Nov 2002
Posts: 2,753
Likes: 5
From: I told you to wait in the truck in Texas, United States
Re: Si ECU into 90 DX? (rightandtight)
I have hooked up a PM8 which is an HF ecu before..
It runs like crap and the check engine light will come on
as it throws several codes..
Unless you have converted to MPFI,
You will be wasting your time and energy..
It runs like crap and the check engine light will come on
as it throws several codes..
Unless you have converted to MPFI,
You will be wasting your time and energy..
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