hey everyone i have a question about the vss...if im getting a vss code would this cause vtec not to engage? also would a bad cluster or bad speedometer cable cause a vss? if so how can i tell which one is the one thats causing the code?

i have a d16z6 in my ef and my speedometer doesnt work...and im getting code 17 vehicle speed sensor...i dont know if i have a bad sensor or bad speedometer cable or bad cluster....i dont know which one to replace...can ne one help me???????thanks in advance

 

True..

code 17 kills vtec..

the car needs to know its going at least 19 MPH for vtec to engage

fix your vss and you might get vtec

 

VTEC needs 3 things in order to activate and speed is one of them. Having a broken speed cable can cause it not to work. Replace the cable and see if that works. Make sure your oil is topped off also. Let me know if this helps.

 

how can i tell which one is the problem? i know its either 1 of these 3 things....speed sensor, speed cable, or the cluster itself...is there a way to test out the 3 things to find out which isnt workn????

 

Have you looked to see that the VSS is plugged in all the way into the tranny?

 

"No VSS= No vtec... because the car has to know if its moving..."

im getting a VSS code and no vtec, but i have the Vtec speed check disabled. somtimes vtec works and other times it will not, with one kinda chip, it cuts out at 6400k with the other chip it will rev all the way, both chips are a 50% chance of vtec engauging. my Vtak fluid and blinker fluid are full. go figure?

 

just take your cluster out and unhook the cable then drive slow and see if it spins, if not then check the tranny side.