hi...just fitted 4 new gauges
boost on pillar mount
oil temp / oil pressure / air-fuel / in a centre pod

ive done the boost and both oil gauges all work fine but i dont know where the grey wire goes off the air/fuel gauge...ive had a search about on the net to find out it goes on the sensor on the downpipe...mines got 2 wires but dont know which one
my scooby is a 1999 t -reg

hope someone can help cheers...martin

what colour are the wires coming from your lambda sensor in the downpipe? mines a uk98 and has 3 wires, 2 white and one black, the black one being the sensor wire that i have tapped mine into.

most people wire the afr into the ecu plug but im unsure of what wire that is on the my99

lovely looking car btw :)

Rich