i dropped a y8 in to me EG and wired it all up to a P28 but vtec doesnt work. i know i wired it right and i tested the soleniod and it works, but i am wondering if i have to use a vtec ditributor. i am currently using my dist. from my cx.

 

i am under the assumption that the distributor you are using will work fine with the Y8 head.....hmm i am gonna search right now

 

it seems right becuase i had a y7 in my car and i ran it on the p28 and it acted really funny, now i have the y8 with the cx dizzy and it acted funny with the p28, now i have an ls ecu in there (non-vtec) and it works fine. i am wondering if the ecu being non-vtec or vtec has to match the non-vtec or vtec dizzy

 

damn this goes fast, ttt

 

that dizzy should be working fine...I really don't know...are you getting any CEL's?

 

no CELs, doesnt hit vtec, my air/fuel gauge stays lean and is reall boggy, also idles high, but when i put the ls ecu in no problems, no vtec of course

 

did you shoot the timing with timing light?

 

i will try that tomorrow

 

All the BS about vtec dizzies is a bunch of crap. You can take a z6 dizzy and swap cx internall and it will run fine. Also you can run a cx dizzy on the z6 motor without bolt it will run fine too. You said that your car runs funny even when you don't hit vtec. Check if your p28 wasn't chipped, also are you moving, is your car heated up, do you have good oil pressure, and did you try to test the vtec wire for 12V when vtec is supposed to hit?

 

" You said that your car runs funny even when you don't hit vtec."

right


its not chipped

both moving and parked
and the car is heating up

i tested the solenoid, it works but i tested the ecu at vtec and voltmeter didnt budge

 

damn can you get your hands on another p28 this is not right. Are you sure your CEL light is working fine, try unplugging something see if works. Also maybe try checking the oil pressure. Also did you time the distributor?

 

i have a P07 ecu from a civic vx, going to try it now

 

ok so i plugged in the p28, twp thing happen, it has surging idle beofre it heats up then idles high like around 1500, and also the vtec doesnt kick on either, timmming is right now and i ran out of thing to look at. i check from vac leaks with a bottle of carb cleaner, nothing. hmmm help me guys

 

that's almost right for idle it should be around 1,300. Also are you running one wire o2 by anychance? You should wait until it warms up too.

 

running four wire to a p28

 

I don't know the last thing I can tell you that your Z6 matifold could be giving a y8 ****, but I don't know. Also did you test your coil, clean the oil passages to vtec solenoid and pressure switch. Check your fuel pressure, maybe compression too. So the last p28 that you used you know works fine? Check you oil pressure maybe.

Are you sure you are not getting any CELs?

 

ttt

 

ttt

 

found out what was wrong, since i am using the z6 IM it uses the FITV to control the idle while cold starting so i did the following and everything work just fine

https://honda-tech.com/zerothread?id=699787