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i have a 1992 automatic mazda mx3 and i want to do the bp swap in it but i dont know what all i need only thing i know is my stock tranny will bolt right up to the bp engine if anyone could give me a list of everything i need or step by step instructions on how to do the swap it would be greatly appreciated thank you very much

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You can't just go at it with a list, something will snag and you'll wind up behind schedule (if you have one).

Do an MTX swap at the same time, your ATX will fail. Tis inevitable.


But if you really just want to know....

BP engine.
BP ECM
U code VAF
BP ATX TB.

the dash temp sensor from the B6 (single wire, front of head, RHS)
5' of wire/soldering iron/tape/shrink to run the VICS wire.

im just trying to get a idea you know i really dont have a schedule just need it done by september and i cant do a mtx swap cant have mtx were im from way to much traffic i originaly had it manual but i had to swap it automatic do to that fact and will a manual ecm work for a automatic without being reprogramed

Is your keyboard missing all of the punctuation keys? I don't even understand what you just said. You already swapped it to ATX and you don't know if your ECM works or not?

fuzzy wrote:if anyone could give me a list of everything i need or step by step instructions on how to do the swap it would be greatly appreciated thank you very much

So you want us to spoon feed you the information, you just sit there, all lazy while making us do the work of spending our time and writing out all the information you want. C'mon, give a DECENT attempt at doing your own work and reseach, and we'll fill in the blanks. Like even giving a simple glance, you'll find some information,weird, eh?



Oh ya, BP swap on an automatic, even using the Auto BP trans (Custommx3 looked into it for his RS), doesn't seem doable. So you're SOL.

LOOK!!!!! i dont expect anyone to come help me i am nicely asking for help and no im not just sitting here i spend 2-4 hours everyday looking for things i need and how the swap goes in that's how i know that the swap for a automatic can be done happend back in 2005 by a guy in california and i also have the wireing diagram for a automatic bp swap and thats really hard to find so look man i didnt disrespect you dont come on my topic and start runnin your mouth how im lazy i just need some help is that wrong of me

LOL my bad man i ment i switched to automatic i got a new car sorry for confusin you but from the information i have found about a automatic bp swap is a manual ecm will not work with a automatic car unless you get the ecm reprogrammed but a hour after i seen that i found information that said u can't program a bp ecm u have to buy one that came out of a automatic

I refuse to help until I see more periods. Enough exclamation marks though.

We both speak English but you still seem to have communication issues.


The swap goes:

engine and transmission and wiring harness and ECM out

engine and transmission and wiring harness and ECM in.

Thats the simplest possible path.

ok well you don't have to be rude man. So all i need is bp engine, transmission, wiring harness, and ECM from a automatic car or can i get some of them parts from a manual?

fuzzy wrote:dont come on my topic and start runnin your mouth how im lazy

fuzzy wrote:no im not just sitting here i spend 2-4 hours everyday looking for things i need and how the swap goes in

No, you can do that yourself apparently.

My problem is that you're not even giving a decent attempt at researching yourself. The big problem by not researching and you knowing yourself what to do, is that when things don't go the way you expect them to, and they never do, you'll be stuck and confused.

Yay! Commas!

You're correct in your last post, and you can use a 5 speed BP, but you need an ATX throttle body to match your harness and EC

Thanks man you helped me out more in a day then i have found in a month.

Do some research, get the engine, get the ecu, get the manual tranny, pref F series or do the toyata tranny, get the manual flywheel, get stuck, do some more research, get stuck some more, do more research, finally get it, and enjoy.

crazchino wrote:Do some research, get the engine, get the ecu, get the manual tranny, pref F series or do the toyata tranny, get the manual flywheel, get stuck, do some more research, get stuck some more, do more research, finally get it, and enjoy.

LOL! well put this is exactly what I just went through.

Just to clarify for Fuzzy the harness from ATX and MTX dont match up. ATX and ATX ECU go together no ?. and if you use the harness from the donor car you wont need to add in the extra VICS wire. The fuel rail harness from BP to B6 is different also due to the VICS controller. Do lots and lots of research. Take your time with it and dont rush urself.