on my 99 civic si when i hit 5500 vtech kicks in but then at 6000 it goes off and then around 6500-6900 it kicks back in. what could be the problem?

 

faulty wall jack?

 

You're probably running low on vtec juice.

 

is that expensive?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F1ian00 &raquo;</TD></TR><TR><TD CLASS="quote">is that expensive?
</TD></TR></TABLE>

lol hope you are kidding. also its VTEC should be stamped on your valve cover (assuming DOHC or z6 & z1 motor)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F1ian00 &raquo;</TD></TR><TR><TD CLASS="quote">is that expensive?</TD></TR></TABLE>

If your are serious, don't listen to them. I'm betting your oil level is low. Check the oil and add if neccesary. If it isn't take off the VTEC silenoid and clean the screen.

 

thanks much appreciated

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SeeD419 &raquo;</TD></TR><TR><TD CLASS="quote">You're probably running low on vtec juice.</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F1ian00 &raquo;</TD></TR><TR><TD CLASS="quote">is that expensive?</TD></TR></TABLE>

man thats wrong... hope its just the oil level

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Single Cam Loser &raquo;</TD></TR><TR><TD CLASS="quote">faulty wall jack?</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SeeD419 &raquo;</TD></TR><TR><TD CLASS="quote">You're probably running low on vtec juice.</TD></TR></TABLE>

who the expletive do you think you guys are? there's a bunch of douchebags on this forum that act like they have someone to impress. we dont need you stupid ******* jokes in here. this dude is asking for help ,and you're confusing him.

As others have said, it's probably just low oil pressure. Just check your oil level and top off. Or if you haven't done an oil change in a while, i'd also think about doing one.



p.s.: don't mind the asshats

 

just so the OP knows, VTEC relies on oil pressure to engage. If you do not have enough, it will not work. Your engine also needs to be at running temp for any vtec engagement.

 

Change your oil.

 

Oh BTW, for future refrence, its VTEC, not vtec, v-tec, vtech, VTECH, m3d fast VT3C y0 or anything else. Just VTEC.

 

Variable Valve Timing and Lift Electronic Control

http://en.wikipedia.org/wiki/VTEC

and HowStuffWorks.com

 

yeah VTEC is dependent on oil level. it also isn't a good idea to try smashing out when you're too cool either, not only that vtec wont work (oil didn't heat and get to correct pressue levels yet) but also you waste gas

 

the vtech phone jokes were funny in 03, tolerable in 04, annoying in 05, and downright retarded in 06. Just an FYI for all you comedians out there.

OP, if you don't have a check engine light on, check oil level first, then check the solenoid screen for clogs, then check for a dent in the bottom of your oil pan.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IHateJDM &raquo;</TD></TR><TR><TD CLASS="quote">the vtech phone jokes were funny in 03, tolerable in 04, annoying in 05, and downright retarded in 06. Just an FYI for all you comedians out there.

OP, if you don't have a check engine light on, check oil level first, then check the solenoid screen for clogs, then check for a dent in the bottom of your oil pan.</TD></TR></TABLE>

im curious.. what would a dent in the bottom of an oil pan determine?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rigles1 &raquo;</TD></TR><TR><TD CLASS="quote">

im curious.. what would a dent in the bottom of an oil pan determine?</TD></TR></TABLE>

your oil pump pulls oil from the pan, so if the pan is dented up enough to block the pick up line, you won't get enough oil to engage vtec (along with some other problems), even if your oil level is good.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F1ian00 &raquo;</TD></TR><TR><TD CLASS="quote">is that expensive?</TD></TR></TABLE>

made my day

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SeeD419 &raquo;</TD></TR><TR><TD CLASS="quote">You're probably running low on vtec
juice.</TD></TR></TABLE>


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F1ian00 &raquo;</TD></TR><TR><TD CLASS="quote">is that expensive?</TD></TR></TABLE>

hahahahamuhhahahahahaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaa.!!!!!!11111

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IHateJDM &raquo;</TD></TR><TR><TD CLASS="quote">

your oil pump pulls oil from the pan, so if the pan is dented up enough to block the pick up line, you won't get enough oil to engage vtec (along with some other problems), even if your oil level is good.</TD></TR></TABLE>

wow.. is that a common problem? becuz this whole time i have been trying to figure out why my vtec does not work.. so.. my problem could be as simple as my oil pan being dented up.. wow..

a possible solution is to jus take the oil pan off and pound it back out right?

thanks a lot for the info...

 

vtech regulator motor cylinder pressure sensor is gone yo

honda dealership ftw

 

Wow, eleventy billion posts saying that VTEC relies on oil pressure after the kid was told AND understood and just as many making fun of him. God damn I love this place.

 

sorry but where exactly is the vtec solenoid?! and what do you clean it with..

 

Honda-Tech post alwasy give me a good laugh! I LOVE HT!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eXcelonTypeR &raquo;</TD></TR><TR><TD CLASS="quote">

lol hope you are kidding. also its VTEC should be stamped on your valve cover (assuming DOHC or z6 & z1 motor)</TD></TR></TABLE>


I HOPE YOU'RE KIDDING!! because all 99-00 Si come STOCK with DOHC VTEC