wire up vss

[michael_antoi]

completed a swap but the vss has to be wired

how do i do this?

wouldn't the engine harness plug into the ecu harness and hence be wired to the ecu?

or do i need to wire it to the cluster?

the swap is carby to efi..

http://www.imagestation.com/picture/sraid101/p6855d62a03218072330fff3aadf7bce4/f9e0e367.jpg


is this what needs to be done?

[iamhappy46]

The VSS unit is already wired up to your speedo unit. On your old ECU plug, there will be a yellow/blue stripe wire that with the ignition on, turn one wheel/tyre and with a test light on this yellow/blue wire it should turn on and off at regular intervals.

[michael_antoi]

hmm just tried that and the test light stayed off...?

[iamhappy46]

Test as many wires that went to the old ecu as possible. Otherwise, the above picture will work but is a little crude.

[michael_antoi]

car needs to be in gear doesn't it?

[iamhappy46]

In neutral, just spin one of the the wheels... You only want the speedo gear to spin, which connects to your CV shafts.

[michael_antoi]

would it make a difference?

i had it in gear last night when i was spinning the wheel

[iamhappy46]

Better to do it in neutral so that the speedo gear actually spins. Try it again in neutral