Hey fellas i have a question i just got my " Catt " put back on my exsaust and all the sudden my check engine came on . I know that its the o2 censor but im wondering could my o2 censor stop my v-tec from kicking in

Peep out the ride

http://www.urbanracer.com/smcl...46624

 

check the code.

 

Yes on VTEC motors from what i know, if the CEL come on, sometimes vtec doesnt work or doesnt work as hard. Its a good idea to check the codes to see what exactly went wrong.

 

check the code

 

Yes i already checked the coed its my o2 censor but what i wanna know is if the o2 censor can stop my v-tec from kicking in

 

check the code.. it could be your knock sensor.. that would cause the vtec not to kick in..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sPaRk’iT &raquo;</TD></TR><TR><TD CLASS="quote">Yes on VTEC motors from what i know, if the CEL come on, sometimes vtec doesnt work or doesnt work as hard.</TD></TR></TABLE>

 

I dont know much about VTEC but I suspect if the CEL comes on, it puts the ECU in 'limp' mode keeping you outta VTEC

 

double check your code!

 

maybe you have a LS man LOL

 

Yes its very possible. Your car is now running in "limp" mode. Get a new O2 or Cat.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sPaRk’iT &raquo;</TD></TR><TR><TD CLASS="quote">Yes on VTEC motors from what i know, if the CEL come on, sometimes vtec doesnt work or doesnt work as hard.</TD></TR></TABLE>

Huh?! There's no level to the amount of VTEC that kicks in. It either works or it doesn't work.

 

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

Huh?! There's no level to the amount of VTEC that kicks in. It either works or it doesn't work.</TD></TR></TABLE>

Fellas i know my car it's a GSr lolol come on man ... i I know its o2 censor i jumped the computer and it was my o2 but i wanna if the o2 can stop my v-tec from kicking in

 

YES!!!!!
Your driving in limp mode. I.E...no power......
Is it not obvious? You canged something and right after that change something was different.....

 

LoL This guy is funny. Already so many people who said "yes" or "probably so" and he still asks the same question. Since everyone else is saying yes then it IS keeping your V-TEC from kicking in. Replace the O2 sensor and see if that wont fix your problem. ~_~

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sPaRk’iT &raquo;</TD></TR><TR><TD CLASS="quote">Yes on VTEC motors from what i know, if the CEL come on, sometimes vtec doesnt work or doesnt work as hard. Its a good idea to check the codes to see what exactly went wrong.</TD></TR></TABLE>

 

You should check your oil too.

 

Check your flux capacitor.

No really, just replace the sensor and reset the ECU... go for a spirited drive.

 

Ight i changed the o2 censor imma restart my ecu and ill let u guys know how it turns out lol thx for the help fellas hope i get this **** to work .........Pain in my f--ckin ***

 

Good luck bro.

 

What year is your car? If its obd-1 94-95 vtec will still work if the o2 SENSOR is not working or even disconnected.. I don't know about obd-2 cars.

 

There's been a lot of talk about checking the vtec code: how do you do that? I'm new to Vtec engines.

 

You check for computer codes... and sometimes the codes that it puts out are related to VTEC's operation.

 

i took out my o2 sensor to put in a high flow cat an my vtec still kicks in fine... it threw of the engine check but it didnt make a diff. -98 gsr i have

 

Oh ok I gotcha now...the ECU?
how do you know when Vtec kicks in? i know all bout how it works and that (bar the codes of course...(!!) but is there that much of a noticeable increase in power when it does kick in? I've got a 1990 XSi with a B16A under the hood, and of course I get power when the revs go over 4000 and that, but is it that noticeable?