Mr. Em1

iTrader: (1)

hey guys i just swapped a y7 into my 96 ex and need to change my engine harness. i would like to put a non vtec engine harness into my car but was wondering if the engine harness will reach all of the necesary sensors on a d16z6 manifold. i have a d16y7 w/ the z6 manifold on it. thanks for your help, much appreciated..

Mr. Em1

iTrader: (1)

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Luserkid

Best thing you could do if you want to stay non VTEC is get an AUTO y8 manifold. Then you could use the y7 harness no problem. Any other manifold besides that and y7 will give you IAC problems.

Mr. Em1

iTrader: (1)

when u say iac problems u mean as far as a wire reaching it? i think i may have an auto y8 manifold
do they have a spot for an iat? both y8 manifolds i have dont have spots for iats

Mr. Em1

iTrader: (1)

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94EG8

The IAT on '96 - '00 civics is in the airbox on Y7s and in the intake piping on Y8s

brutekiller787

i have a question for the OP. why would you swap out a y8 vtec for a y7 non vtec? do you not like vtec or something?

Mr. Em1

iTrader: (1)

it was cost effective and needed to be done, id rather get better mpg's in my daily driver. i have a race car idc if the daily goes fast

Mr. Em1

iTrader: (1)

so maybe im thinking of another sensor that is plugged int othe intake manifold that is a two wire sensor, usually in the front but on my z6 manifold it is on the back...

brutekiller787

IACV maybe? idk where it is on the y8 mani but it is right on the top for the y7 mani. it's actually a three wire sensor on y7 but it's a two wire on y8

Mr. Em1

iTrader: (1)

not the iacv i know what it is, this is a sensor not a control valve. well basically can i use a stock y7 harness on my y7 with the z6 manifold?

94EG8

Sorta. You will need to reuse the Y7 throttlebody and block off the IACV on the back of the Z6 IM, you will also have to pick an IAT sensor to use.

Mr. Em1

iTrader: (1)

why can't i just use my iacv on the back on the manifold like normal? im confused

94EG8

Because its a 2 wire IACV, compared to the Y7s 3 wire IACV. If you try to use the Z6 IACV it flat out will not idle right. Thats why it makes far more sense to use an automatic Y8 IM, direct bolt on.

Mr. Em1

iTrader: (1)

so automatic y8 manifold with my two sensor will work properly? and all the wires on a y7 harness will be bale to reach the sensors it needs? and do u kno where i can find a layout of the colors of the wires on a 96-98 dx/lx engine harness?
and thank you for your help u have been very imformative
i have two y8 manifolds how do i tell if one is from an auto? and what is the difference between the manual and auto one?

94EG8

The automatic Y8s used a 3 wire IACV on the throttlebody the same as all Y7s. On the Automatic versions you can see where the mounting for a 2 wire style IACV is blocked off. Using the automatic Y8 manifold is a 100% plug and play solution, You will not need to do any wiring at all. Below is a pic of an automatic Y8 manifold compared to a D16Z6 manifold, it will show how the automatic Y8 has the IACV mounting blocked off. Pics courtesy of Katman @ ff-squad.

Mr. Em1

iTrader: (1)

wow that basically answers my question, now that sensor that i was speaking of before is the white one on the z6 manifold. so i need a y7 throttlebody and an auto y8 manifold and im plug and play good to go?

94EG8

That white sensor is the IAT (intake air temperature sensor), its on the intake piping on your EX. And yes, auto Y8 IM and Y7 throttlebody (automatic Y8 works fine as well) and you're all set.

Mr. Em1

iTrader: (1)

hmm interesting i wonder why it was plugged in on my car then, something else must have been unplugged

giovi_ek

CAN I UNPIN THE PINS ON THE PLUG FROM MY HARNESS (IAT) FIND A PPLUG THAT FITS ON THE Z6 IAT AND PIN THEM???

HondaPartsHero

Yes or just splice the connector on. Or just put your obd2 IAT into your intKe arm.

giovi_ek

thanks for the help guys