otakueric

is it true that vtec wont engage if you have a check engine light on?

HXvtec

depends on what code your throwing.
u need oil pressure
speedometer and tach to work
and some other stuff.

otakueric

what if its a code 14
the iacv, fast idle code

sohcvtec1995

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HXvtec &raquo;</TD></TR><TR><TD CLASS="quote">depends on what code your throwing.
u need oil pressure
speedometer and tach to work
and some other stuff. </TD></TR></TABLE>
I told him to say that. He stole it from me

Option

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by otakueric &raquo;</TD></TR><TR><TD CLASS="quote">what if its a code 14
the iacv, fast idle code</TD></TR></TABLE>

It should still kick in, you check all your vaccum hoses for leaks and such??

HXvtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sohcvtec1995 &raquo;</TD></TR><TR><TD CLASS="quote">
I told him to say that. He stole it from me</TD></TR></TABLE>

i thought of that on my own i swear

otakueric

yeah, no vacuum leaks...

if my secondiries open, does that mean my vtec kicked in?

HXvtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by otakueric &raquo;</TD></TR><TR><TD CLASS="quote">yeah, no vacuum leaks...

if my secondiries open, does that mean my vtec kicked in?</TD></TR></TABLE>


no your mid rocker arm needs to open up. your primary and secondary lock together to the mid which has more lift.

otakueric

im not that great in understanding how most of this works
can you explain a little better?

but even if you dont..i got my answer...having the secondaries open doesnt mean vtec kicked in

HXvtec

ok u have a total of 3 rocker arms per clyinder. primary, secondary and mid. your pri and sec are on there own lobe when vtec is NOT engaged. they both have the same lift and duration. when vtec is engaged the pri and sec arm locked together to the mid rocker arm which has more lift and duration. so when vtec is engaged the pri and sec no longer contact to there cam lobes. just the mid rocker arm.
pri and sec are just normal operating valves when ur normally driving. hope this helps.

HXvtec

what code r u throwing??

HXvtec

u need these things for vtec to work.

1. engine speed. rpm
2. vehicel speed. mph
3. throttle postion sensor output.
4. engine load mearsured by the manifold absolute pressure senor.
5. coolant temp.
6. oil pressure.

otakueric

code 14, the iacv, fast idle one
i bought the parts from the classifieds and should be getting rid of the cel soon

otakueric

ttt
please any help?
kinda confused as to why my vtec aint kicking in
im throwing code 14 but getting that taken care of pretty soon
i filled up my oil to the top of the 2nd dot
im running an itr block with 11.5:1 comp and a stock gsr head, p72 obd2 ecu
i only have 1 of my o2 sensors plugged in, could this be something? but when i do the test by short circuiting the green plug ove rmy ecu, only code 14 comes up

*i only have one o2 sensor plugged in, because i think one of the o2 sensors is supposed to be in my downpipe or something, not too sure, i just have one going to a gsr catalytic converter, and one just hanging up there.

please help
thanks

otakueric

hm? ttt