I am having alot of trouble getting my Vtec to hit every so often It will hit but it will turn on and off! I am thinking it is because of my O2... I dont have them hooked up. I have a 99GSR header so there are no O2 holes, I know I am running my engine rich but is this the problem to my VTEC. Just let me know.

For some reason it works perfectly fine on days that it is 80 degrees out but not on others...Strange

-Nic

 

Our ECU's cant function properly unless all the sensors are hooked up. drill a whole or something and add your sensor.

 

Did ya add the vtec fluid? =x

 

this supposed to be a joke.!??

check three things..
oil presure sensor...
vtec solenoid switch and the
vtec ground...

maybe the ground is loose.!

hth!