i just recently built my y8 and when i put the motor back in and broke it in i realized that i couldnt hear my vetec anymore. i checked all the connections and i was really carefull when it was of the head, so i really dont know what happened to it anyone have any suggestions?

 

put an intake on you will hear it after.

Dave

 

Can you even hear vtec engage in a sohc vtec motor???

 

check your valve lash clearence again

 

i have an aem cai did you mean mani ?

 

i havnt had time to check the valve lash again i prolly will next weekend

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KingElli &raquo;</TD></TR><TR><TD CLASS="quote">Can you even hear vtec engage in a sohc vtec motor???</TD></TR></TABLE>

yeah

 

any CELs?

Oil pressure?

 

oh.. and make sure you put plenty of oil in the motor too

 

you can hear it, but it's not as loud as a twin cam.

 

maybe you cant hear it, but can u feel the change over?

 

i cant hear it or feel it really. im running like 12to 1 compression so i think i would be able to hear it. what are CEL's?

 

CEL = Check Engine Light

 

are you in limp mode? cuz that is what was wrong with mine. check your o2 sensor i.a.c.v. etc.

 

I havent checked my valve lash since I did my mini me... but I cant hear it either... Only way I know that vtec is engaged is because my oil pressure drops a bit when it engages since vtec is a hydraulic system I watch my oil pressure gauge to see when it engages. I have an intake, edelbrock intake mani, headers and exhaust... My Y8 head is also ported and polished..

 

my check engine light is on but i think that is from my test pipe it was on b4 this problem i also have a problem with my speedometer it keeps going to zero and staying

 

if your cel is on and your VSS is fawked you won't get vtec

 

You can hear VTEC on SOHC motors, it just doesn't hit as hard.

It make just be blown, that can happen.

 

If you have all that you should be able to hear VTEC....i mean with my d16z6 I just had a short ram intake and I could hear the crossover distinctly.

Get an LED, hook the positive up to the VTEC solenoid and the negative to ground......see if it lights up when VTEC is supposed to be engaged.

 

My SOHC transitions like a **** into vtec. goes from waaaaaaaaaaaaa to WRRRRRRRRRRRRRRRRRRRRRRRRRRRR!

 

just like eg sleeper said your vss is screwed as it was in mine so it aint goin to ingage. and even when you get that fixed if your check engine light is still on you got another problem so you still wont be hittin tec

 

of course you can. atleast i can for mine

 

ok so what is the Vss sorry i havnt learned all the abrieviations yet i was able to hear it before i but now i cant could it just be the vetec solinoid?

 

Tell it to speak up. Because, we all know that once you can hear VTEC, you'll think you're going faster.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KingElli &raquo;</TD></TR><TR><TD CLASS="quote">Can you even hear vtec engage in a sohc vtec motor???</TD></TR></TABLE>


Its not nearly as noticeable as it is on a dual cam.