Just put in my zc over thanksgiving.It ran great for the last two days.Then today after work i got like 100 feet and my tach spiked and the engine stalled.I got it to start and jiggled the harness behind the intake manifold and it stalled.The ecu is throwing the vss code.Tried to start it and my check engine light was flashing and i heard a clicking.I assume i have a short.Where is the vss on a ef?I got it to run,and,i got it home.I will be tring to take it to work in the morning,and fix it on my break.Any help will be great.

 

im assuming whenever u was jiggling the wired behind the intake u must have unplugged ur speedo cable out of the tranny did u speedo stop workin? if so plug it back in the tranny and reset ur ecu and u should be good to go ill find a pic and show u where its located

 

my tach works but my speedo doesn't.I lost that clip when i installed the engine.You think thats the prob?

 

I put it in as far as it will go and i reset the ecu.Imma just take it easy to work for the twenty miles or so,hoping that it stays in.Thanks man

 

yeah i am having the same problem. it is my cable, hopefully i can find one

 

yeah the speedo cable is ur problem thats why its thowing the code if u cable fell out then ur goin to throw the vss code

 

Its still not clipped but i got it in there now,my speedo works,but, now im getting the #1 code "unplugged or faulty sensor".My reverse light switch is on the fritz.I put it in reverse and my driver side turn signal turns on.I dont think the ecu is picking that up.Or is it?

 

when you have electrical issues it can cause some crazy sh*T. double check all your grounds make sure there clean and tight. most of time issues are caused by a component not getting a good ground so it follows path of least resistence which is anything that does have a better ground sometimes powering up circuits, turnings on lights, ect.