raider1qaz

Can i use a d16y8 head without hooking up the vtec? i have to oreder the ecu si i wanna run the y8 head with y7 throttlebody and intake manifold just for now ,can i do that?

HondaPartsHero

yes

raider1qaz

it wouldnt run different?or act up?thanks for the reply

HondaPartsHero

I mean it won't run optimally but it'll run fine as long as you use the intake manifold and TB from the Y7.

raider1qaz

once i get the y8 ecu must i use the y8 intake and tb? its cause on my y7 i have a cold air intake

raider1qaz

old set up in car new set up out of car

tony_2018

vtec won't kick in so you won't have a problem, now if you tried to use a vtec controller to enable the vtec than that is where your car starts to run like ****.

HondaPartsHero

Yes because the idle air control valves are different. You'll also have to wire up VTEC and knock. Are you sure that's a y8 head because it's not a y8 manifold, more like a z6.

raider1qaz

How can I check if its a y8?

raider1qaz

Do I need a 96 ecu cause I have a 96 civic with 96 wireharness or do I need a 99ecu cause the head is off a 99 civic

raider1qaz

Just checked its a 1999 ex d16y8 head

tlarimer

iTrader: (3)

That's a Z6 intake manifold though

tlarimer

iTrader: (3)

Use the ECU for your year car, which is OBD2A. 99-00 Civic's are OBD2B, so unless you're planning on changing the engine wire harness to OBD2B as well, get a 96-98 OBD2A ECU.

raider1qaz

ya its a z6 intake, i think its a manuel on tho and i have an automatic(for now)

tony_2018

would be easy to help if you provide alot of info in your first post.

HondaPartsHero

-use your harness (or find a 96-98 ex harness for plug and play)
-add vtec, knock, and IACV 3-2 wire conversion
-if you use the ex harness you'll have to manually wire in the 2nd 02
-put your cars intake air temp sensor into your intake arm or convert to the round style on your z6 manifold

raider1qaz

i have a y8 block with a y7 head

i just bought a y8 head so soon ill have a full y8

The car is an automatic (yes i know i need to go stick and i will as soon as i get the money)

any issues? thank you

eghatch9295

iTrader: (1)

the problem you'll run into is that you can't run the y8 vtec ecu with your setup. the tcu is integrated in the ecu, and the y7/y8 transmissions are not the same. unless you convert to 5 speed or swap transmissions, no vtec for you.

raider1qaz

why not?ive done all my homework on the swap, ive ordered the p2p obd2a ecu already and got all the connections i need and wires to extend the wires,the other post i made noone said i couldnt

raider1qaz

i think the z6 intake is for a manual transs, but i have a auto, what can i do? i ask cause you seem to know so much about this

NotARaCist

iTrader: (1)

The TCU is integrated into the ECU. The TCU controls the transmission. It expects the gear ratios for the transmission that came originally equipped with that ECU. An EX ECU cannot properly control a DX/LX transmission, and will throw a CEL because of it. A DX/LX ECU cannot properly control an EX transmission, and will throw a CEL because of it. For autotragic Civics, you HAVE to match the ECU to the transmission.

raider1qaz

is there a way to check the trassmisson and see what model it is?the previous owner rebuilt the whole engine and had a full y8 but never put the head cause it was for the wife, anyway is there any marks on the trassmisson thatll tell me what kinda it is?

tlarimer

iTrader: (3)

Z6 auto and manual use the same manifold. Y8 has two manifolds, one for auto and one for manual. If it was me, I'd get a Y8 auto manifold. I actually have a 99 Y8 auto manifold on my 99 Y7 civic and have had no issues since I put it on 1.5 yrs ago, even passed CA emissions testing with it

NotARaCist

iTrader: (1)

If you clean it off, there should be a casing code on it somewhere. If memory serves, it'll either be an A000 or B000, or something similar. Assuming your CEL isn't on right now, and you're running a DX/LX ECU, you have a DX/LX transmission.

eghatch9295

iTrader: (1)

y7 and y8 injectors are different as well, grab the y8's