VTEC does not engage

spoongsr · Post by **spoongsr** » Tue Jul 24, 2007 4:53 am

I have a k20z in a 99DC2 with a 02-04 warness and 02-04 kpro.. i cant get the vtec to work unless i check on the no speed signal on the k manager, but this option disables the reverse and i cant get the car to get in reverse... I don't have the speed sensor conected cause i need the get the 05 plug, plus a converter.. i dont realy care much for speed reading but i do care for the vtec to engage.. what can i do?

Post by **Hondata** » Tue Jul 24, 2007 9:23 am

The crux of the problem is that you're not getting a speed signal.

See http://www.hondata.com/techk20transmissions.html

spoongsr · Post by **spoongsr** » Tue Jul 24, 2007 12:39 pm

there is no way i can gt the vtec to engage unless i have speed signal?

Post by **Hondata** » Wed Jul 25, 2007 9:23 am

The ECU needs the speed signal for many other functions apart from VTEC. You'll need a speed signal.

spoongsr · Post by **spoongsr** » Wed Jul 25, 2007 9:31 am

so besides the way you have it on the post you quote early is there any other way to make the speed signal work on a swap car (99dc2 with a k20z1)

Post by **Spunkster** » Wed Jul 25, 2007 3:08 pm

I think the answer is clear at this point. You must use a proper VSS signal to get the VTEC to work properly.