Re: ECU Difference

You are accessing this site in a read-only mode. For full access to all member benefits, including message posting, please login or register. Registration is completely free, simple, and takes only a few seconds.

The message you are replying to and its parents are listed in the reverse order with the most recent posts first. This might not be the whole discussion thread. To read all the messages in this thread please click here.

Re: ECU Difference

jim beam

29 Sep 2007 13:12

>>> I have a 1990 Prelude Si ALB with a JDM B20A engine in it. (Engine
>>> is not the original, of course) My ECU is a PK3, which is the
[quoted text clipped - 18 lines]
> computer-controlled, of course. So is it possible that the PK3 is just
> because of the anti-lock brakes, and otherwise, it's the same?

difference is probably the injection map. since "pk3" is sequentially
higher than pk2, i'd stick with the one you have. otoh, around here,
you can pick up ecu's from junk yards for ~$30. you could buy one and
experiment if you /really/ need to prove it to yourself.

BigJon

29 Sep 2007 05:37

>> I have a 1990 Prelude Si ALB with a JDM B20A engine in it. (Engine is
>> not the original, of course) My ECU is a PK3, which is the original ECU
[quoted text clipped - 14 lines]
>
> I don't recall the 90 SI as having anti-lock brakes,though.

What is the difference in the ECUs though? I mean, ALB (ABS) is
computer-controlled, of course. So is it possible that the PK3 is just
because of the anti-lock brakes, and otherwise, it's the same?

Jim Yanik

29 Sep 2007 03:22

> I have a 1990 Prelude Si ALB with a JDM B20A engine in it. (Engine is
> not the original, of course) My ECU is a PK3, which is the original ECU
[quoted text clipped - 5 lines]
>
> Jon

I owned a 90 Prelude SI,and there was a 2.0SI and a "SI";the difference was
that the "SI" had 140 HP(that's the one I had),and the 2.0SI had
135HP,though both were 2 liter motors.
I suspect most of those "Prelude SI" are the 2.0SI models,they were much
more common. ISTR that the 140HP motor was an all-aluminum motor,no iron
cylinder liners.

I don't recall the 90 SI as having anti-lock brakes,though.

Signature

Jim Yanik
jyanik
at
kua.net

BigJon	29 Sep 2007 03:15
I have a 1990 Prelude Si ALB with a JDM B20A engine in it. (Engine is not the original, of course) My ECU is a PK3, which is the original ECU from the factory, and the car runs fine. I've noticed that most 89-91 Prelude Si's have a PK2. Does anyone know the difference between the two types? Thanks! Jon

Quick links: