I have a 99 si, everything seems to work great and the car runs fine but the only problem is vtec doesnt kick in.. Anyone have any idea why it wouldnt kick in like its suppose to???

 

Check your oil level. Rick

 

^ what he said

 

Do you have a cel? Sometimes it makes u go into limp mode and vtec will not kick in

 

Odds are your oil level is real low and you're not getting sufficient oil pressure to make the VTEC solenoid do its ****.

 

Maybe somebody just stuck Si stickers on it and it's really a DX. Haha.

 

Vee-Tack Solenoid has not reached operating temp... Let the bish warm up before you bag it.

 

speed sensor?

 

I have no CEL's, the car is upto temp. and the oil level looks good... Any other suggestions??

 

Water temp could be causing it too. Make sure your engine is warmed up all the way.

 

are you sure its not engaging? is the rev limit much lower?

 

I let the car run for an hour before I tried it and it didnt kick in....

It will go all the way upto 8 grand with no vtec

 

ho do you know its not kicking in? maybe you are just use to it now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicflnum1 &raquo;</TD></TR><TR><TD CLASS="quote">ho do you know its not kicking in? maybe you are just use to it now.</TD></TR></TABLE>

My thoughts too. If oil level is fine, and operating temp is fine, then maybe your VTEC solenoid took a crap on you..

 

I bought it from an auction missing the motor.. I got the block from my friend and got the head and tranny from a shop.. Everything was slapped together but no vtec. Trust its not that Im used to it.

 

try this

https://honda-tech.com/zerothread?id=164863

 

check the selonoid (sp) is everything connected? also bring i back to damn shop. and btw vtec was quiet when i was stock slap an intake on and see if you can hear it

 

has intake