I did explain this several times in previous post
red from sensor ------- +12v
white from sensor------red on centre plug on gauge
black on sensor--------black on centre plug on gauge
gauge will then go through opening ceremony and go to zero instead of -1
yea sorry i worded that wrong
what i've done
4 wires on gauge itself ( red, black, yellow + white )
red to switched live ( red from radio )
black to -( radio again )
yellow to dimmer ( radio dimmer )
white to switched live ( again radio red )
middle plug on gauge
red goes to sensor in engine bay
black goes to sensor engine bay
sensor in engine bay
red connected to red from centre plug on gauge
black connected to black from centre plug on gauge
white connected to red ( tee'd into red on same gauge ) centre plug on gauge