j-rome

friend has a 98 civic EX with a Y7 motor swap due to high miles. The motor has a Y8 intake manifold on it and still has the Y8 ECU in the car so it runs like scat. he wants me to make sure before he buys the Y7 ECU that even though the car has a Y8 intake manifold the ECU will work with it

freakasis

mod the y7 throttle body to fit and the y7 ecu will work great

j-rome

he does not have that kind of skills lol. he pretty much wants to know what ECU his car will run best on even though none will be perfect without modifying something

freakasis

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j-rome &raquo;</TD></TR><TR><TD CLASS="quote">he does not have that kind of skills lol. he pretty much wants to know what ECU his car will run best on even though none will be perfect without modifying something</TD></TR></TABLE>

well if thats the case then he shouldnt have been changing out manifolds. and also if thats the case he's a dumbass..because set up the way that it is no ecu will work...none

j-rome

the previous owner did both things. he bought it like this. he knows neither will work 100% but wants to know what one will work better

freakasis

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j-rome &raquo;</TD></TR><TR><TD CLASS="quote">the previous owner did both things. he bought it like this. he knows neither will work 100% but wants to know what one will work better</TD></TR></TABLE>

well if you use the y8 ecu the iacv will work but the fuell maps will be all of espicially in high rpms

and if you use the y7 ecu the iacv wont work at all....which means when you turn the a/c on the car might stall. and the maps will be closer but still not perfect because you changed the whole shape of the manifold. just get a y7 manifold from the junk yard and pay someone to put it on. thats the only way your gonna get your drivability back

16yroldekownr

why not just get a OEM ecu for the y7 and keep running the y8 mani? thats what i was planning on doing with my y7 instead of running the down draft intake mani

j-rome

well according to freakasis then the iacv wont work at all... unless their is a way to make it work... isent their a way to change the iacv from a 2 wire to 3 wire to make it work or can you only do a 3 wire to 2 wire?

16yroldekownr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j-rome &raquo;</TD></TR><TR><TD CLASS="quote">well according to freakasis then the iacv wont work at all... unless their is a way to make it work... isent their a way to change the iacv from a 2 wire to 3 wire to make it work or can you only do a 3 wire to 2 wire?</TD></TR></TABLE>

someone correct me if i'm wrong but when i looked around a little when i wanted to to a y8 intake mani to y7 intake mani i never read anything on having to change the iacv it was just reusing the fuel rail and such.

freakasis

"If you plan to keep the Y7 computer, it's easiest to use a Y8 auto manifold and t/b since the IACV setup is the same. Of course the 5-speed manifold setup works fine too, you just need to block off the IACV opening on the back and swap the throttle rotor & spring over to your Y7 t/b."

from

http://www.superhonda.com/foru...12713/

theres alot more info on that page too

j-rome

well i did not even notice but i did not mention the car is a auto with i am pretty sure a auto Y8 intake

freakasis

so you know what has to be done?

j-rome

i believe so. he is debating on either making the Y7 work or looking for a cheep Y8 now.