BP ecu

[Joe Carlson]

Hey, during my bp swap i tore down a protege dx and protege lx. The protege dx had a good tranny but bad motor, and i used the tranny out of it. I pulled everything out it, and noticed that the computer out of the dx is the same as the one i used from the lx. Stamped right on the top of it, it says BP01, and i know the one i pulled out of my mx-3 says b6 something. If it's a ecu that can be used with a bp swap, and anyone's interested, i'll sell it. I also have the engine i pulled out of my 92 mx-3, that runs good. Thanks-Joe

[LongJohn]

Was it from a Protege with a manual tranny? If so, I might be interested. My BP is in transit, and I need an ECU.

[Joe Carlson]

yeah that ecu was from a manual.

[Gro Harlem]

It's not the same ECU. BP01 is for the SOHC 16V B8 engine. BP10 is the one that comes in the BP dohc Protege LX's

[LongJohn]

I've been searching for exactly the right part number for the ECU I need for my BP. I'm confused.

My BP is from a 91 Ford Escort GT with a manual. My MX-3 is also manual.

Part searches yield BP09 but it seems that -A, -B, -D, and -R are somewhat similar, and -E and -F are perhaps a bit different.

Also, many posts here have described it as BP10, but my searches yield BP09.

I do I determine what to buy?

[LongJohn]

I always try to answer my own questions when I ask them, so I've looked around some more. Here is my theory:

BP10 = Mazda Protege
BP09 = Ford Escort

The -A -B -D -R suffixes on the BP09 are for the 91-92 Escort, and the -E and -F are for the 93-96 Escort.

Since my engine is from an Escort, and it is most likely a BP-ZE (note the Z), I most likely want the BP09, and the 91-92 wiring diagram most closely models the MX-3 wiring diagram.

Is my theory correct?

[BuGS]

that sounds right. I think that is what they have disscussed on the clubprotege.com forums numerous times.

The Wiring for the SOHC Protege and SOHC MX-3 are the same. And the only different from SOHC to DOHC are two wires that operate the VICS system.

[Joe Carlson]

So is the BP out of the escorts better, being a ZE? The second BP i put into my mx-3 is out of an escort, but i'm going to pull it out anyway, for a lower mileage engine. It runs good, and has a new lowerend, but it averages around 115psi per piston. Hey John Long if you need an ecu i now have a BP10 and a BP09 extra that i'll be willing to sell cheap, i need money to finish out the body work on my car since the old lady smashed into me. Thanks-Joe

[LongJohn]

I'm leaning toward a BP09 not because I think it is better than a BP10, but because the Escort BP is a bit different (cams and stuff), and the BP09 is tuned for those differences.

My plan is to drive to a junk yard tomorrow morning and buy a BP09 for $100. I don't know how to buy your BP09 fast enough, or I would do that instead.

[krishna]

I just bought a protege BP and its not coming with the ecu... so i think i will need the BP10... if you still got it, send me a pm