ok here is the deal. i just bought a 1989 civic dx with an auto transmission. im taking a spare manual trans. from my 1988 crx hf and slapping it in the civic. my question is what ecu should i use? im pretty sure that i can't use the dx auto ecu but should i use a manual dx or the manual hf ecu? also, what kind of gas mileage do you guys think i will get with the dx d15b2 and the hf manual trans? that is actually what my goal for this project is to actually see what kind of gas mileage i can pull out of the car. thanks a lot for the help.

edit: a couple more questions...my friend has a set of manual pedals from a 1987 crx. do you guys think i could use these pedals for the swap?

 

Use the manual DX Ecu.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">Use the manual DX Ecu.</TD></TR></TABLE>

correct.. its a PM5

 

ok, i didn't know if that would work correctly because the hf manual transmission is different from the dx manual transmission from gear ratios and such. anyone know what the difference in gear ratios are and the final drives?

 

it will work but the HF tranny is teh suck.. its geared very long for fuel efficiency. it will work with the DX ecu though. imho look for a Si tranny.. even a dx tranny would be better than the HF. good luck!

 

im sure you could get 33+ mpg out of the HF tranny

 

yeah ya see that's exactly what im wanting to do is get gas mileage out of this car. im not going for speed. that's what my turbo b16 crx is for

 

yeah throw that HF tranny in then... you wont be getting anywhere in a hurry with it

 

ok cool! now i just need some pedals and a manual dx ecu...

 

those pedals wont work

 

I have a PM5 ecu out of my 91 crx dx for sale. Perfect condition just swapped it out for my new p28. $25 shipped if you want it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BUG_MANIAC &raquo;</TD></TR><TR><TD CLASS="quote">those pedals wont work
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damn! now i need some pedals...

 

yeah i could probably do that...drop me an email at zd2020@hotmail.com about the ecu

 

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