the lighs are about £300 for the set i got a set second hand for £100 i need to get new lamps for them soon as the reflectors have some corrosion on them. the lamps are made by cibie so shouldnt be to hard to get at a ok price.
just had a look at the diagrams and the yellow/white, green/black and there should be a brown/white are for the cam position sensor. The sensor is mounted at the back left of the engin just below the exhust manifold
they are switches so wont work with a gauge you will have to fit a sender for a electronic gauge or as mk3anni says use a t-piece and pipe to the mechanical gauge. mk3anni where did you connect yours to?
looks like the plug has been removed and the wires soldered together the connection should be. sensor loom black - white gray - yellow white - brown white - red/white the two white wire from the sensor are the heater so shouldnt matter which way round they are connected from your photo you can still see where the wire go. the broken bit it a oil pressure switch it needs replacing
Allways been told to use heat exchanger with a cooler as it helps the oil get upto working temp faster(the water heats up faster and the heat exchanger heats the oil)?
the bahn brenner kit will be for left hand drive cars and the turbo will faul the brake master cylinder designa dub do a manifold for RHD cars read this threads http://www.vr6oc.com/e107_plugins/forum/forum_viewtopic.php?128066.0 http://www.vr6oc.com/e107_plugins/forum/forum_viewtopic.php?100620
this fitting guide should help http://www.venommotorsports.com/library/SchrickVGI268.asp we will need a better picture of the TB to tell if its a OBD1 or 2 the one in the guide is OBD2.