just like the title.... my 95 gsr drives fine... but when the vtec is suppose to kick in.... i dont feel it.... comments?.... 80k on the car

 

We're all gonna need a little more info.........is the motor completely stock? Was your car warmed up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iH8RICERZ &raquo;</TD></TR><TR><TD CLASS="quote">We're all gonna need a little more info.........is the motor completely stock? Was your car warmed up? </TD></TR></TABLE>

Yea, more info.

Vtec selenoid unplugged? Car not warm?

....yea, more info.

 

How long have you had the car? VTEC activation on a stock gsr is not that noticiable

 

Engage?

Vtec only engages when the five or four(cant remember) factors are met.

 

95 gsr.... bought it with 79k miles..... at 80 now...only has cams... pulleys.... the vtec cylinoid(however u spell it) is plugged in .... i redlined it.... still no vtec...

 

n yea... the car was completely warm

 

how do you know there is no vtec? are you throwing any cels? is your redline moved at all?

 

when it hits around 5500 rpm... it usually changes noise and pulls harder... but mine just keeps goin normally.....

 

no cel at all

 

in a gsr the vtec kicks in at like 4400rpms and the secondaries in the intake manifold open up at like 5600rpms thats the noise your hearing. no idea why its not opening up. did you change your ecu? ide reset your ecu and see if that does anything

 

how do i reset the ecu... its stock p72 ecu...

 

either pull the ecu fuse, or unplug your battery for abou 5-15 minutes.....then plug it back...and wallah!

 

Very strange that you're not throwing any CEL codes and Vtec isn't engaging. I dunno about you, but Vtec isn't that noticeable soudwise until 3rd or fourth gear. Check to see that you have enough oil to give the correct oil pressure to activate Vtec. You may have borderline enough oil to give enough oil pressure, but not quite enough. Also one thing you can do is run a 12v wire to your Vtec solenoid and listen for the 'click' when it engages. Do this only when the car is completely off. If that all checks out and you're still not throwing any CEL codes, I dunno.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by davidjaii &raquo;</TD></TR><TR><TD CLASS="quote">just like the title.... my 95 gsr drives fine... but when the vtec is suppose to kick in.... i dont feel it.... comments?.... 80k on the car</TD></TR></TABLE>

like this?




sorry couldn't resist


I dont feel vtec crossover in my car. It's more audiable than noticable. However my car will pull consistantly hard. There is no "SUDDEN" increase in power. The VTEC system will engage if MAP, Oil pressure, and Water/Engine Temp are all correct. If you aren't getting any one of those up to par you will not have VTEC crossover.

 

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

Vtec only engages when the five or four(cant remember) factors are met.</TD></TR></TABLE>

i think it

1. oil pressure
2. engine temp
3. throttle position

 

you could be low on oil, it is usually the cause of vtec not engaging

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by P1mpSlap &raquo;</TD></TR><TR><TD CLASS="quote">I dont feel vtec crossover in my car. It's more audiable than noticable. However my car will pull consistantly hard. There is no "SUDDEN" increase in power.</TD></TR></TABLE>

Same here. Get an intake if you want the sound to become a little more pronounced.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by notsure &raquo;</TD></TR><TR><TD CLASS="quote">you could be low on oil, it is usually the cause of vtec not engaging</TD></TR></TABLE>

definitely check the oil.

--

to the original poster- you just got the car, so you've never "felt" vtec kick in?
it's possible you just aren't feeling it.

you have cams, which cams? do you have a stock intake? have you tried taking the top of the airbox off, and driving that way? you might be able to hear the secondaries open up more clearly.

--
question- even if vtec isn't kicking in, the secondaries are going to open up regardless, no? isn't it just vacuum pressure, or is it electrical?

 

There was a debate here about 1st gear vtec also, I beleive MPH is a factor also, could be wrong.

edit: are you sure you got a c1 in there, did you just purchase the car?


Modified by erikgsr at 3:23 PM 10/31/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by erikgsr &raquo;</TD></TR><TR><TD CLASS="quote">edit: are you sure you got a c1 in there, did you just porchase the car?</TD></TR></TABLE>

wouldn't that be a *******, lol.

 

ya u better check your engine code

 

LOL, sadly that was the 1st thing I did when I bought my car. Then I verified all other engine components, etc.. lol

Guy: "it's a nice car isn't it?"
me: "yeah yeah, pop the hood."

 

oil level is fine... well im gonna have to time it at the track to see if my vtec works or not i guess

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by davidjaii &raquo;</TD></TR><TR><TD CLASS="quote">oil level is fine... well im gonna have to time it at the track to see if my vtec works or not i guess</TD></TR></TABLE> What the heck does that have to do with seeing if your vtec works? Bust out your helms and start troubleshooting.