High voltage output value on green line

Spartan 3 Lite
1

Today received my spartan lite v2 that i bought to control my LSU 4.9 Bosch lambda sensor. Unit is used in my classic mini with a Delta 400 ECU and is hooked up to the original wiring loom. In the past, a narrow band Bosch sensor was connected.
This sensor had: 2x white (12V+, Ground), 1x black (signal) and 1x gray (ground) on the loom.

Sensor is new and connected correctly. On the green line I get 7.15V and there is no start up cycle. Did the test discribed on the page here but without any succes.

Hope anyone can give me some advice!

2

2x white cable is very wrong, my Spartan3 Lite V2 has Red for +12V, Black for electronics ground and white for heater ground.
What is the “green line” suppose to be?

3

Can you take a picture of the wires coming out of the wideband. There should be only 1 white wire and there should be no gray wire and the black wire the ground.

The wiring looks totally incorrect.