Just find it already!
Most of the later vauxhalls have the sensor in the inlet pipe,between the air filter box and the engine.It has a multi-pin plug on it from the wiring loom and is usually a push fit in a boss or grommet.
hi!its under passenger seat its a wiring loom
There is a wiring loom behind the air bag this works the radio and horn it is about £6 takes about half an hour to change
Usually found screwed into the gearbox,high up,possibly just below the clutch arm.It's a chunky hexagon with a wiring loom plug on it.
Crank pulse sensor on a 2.0 sport is into the lower crankcase near the dipstick.Due to the routing of the wiring loom,replacement involves removal of the crank pulley and belt cover.
I would only use the wiring loom from a MK1, as the MK2 wiring could be completely different!
The underbonnet wiring loom was revised on my1994 when the X20XEV engine was introduced.There were requirements for secondary air injection,crank pulse pick-up and starter/alternator wiring.You have probably fallen foul of this update.
Wow, that is a little like asking "where is the wire in your house?" and you answer "in the floor, in the walls, in the ceiling, all over!" First of all there can be more than one speed sensor. The ABS uses several speed sensors,and there are two more speed sensors on the transmission. But I am assuming you want the one that runs the speedometer. That is the Vehicle Speed Sensor(VSS) located on the left rear of the trans tailshaft housing. The wiring runs from that sensor, all the way through the main trans wiring harness loom, up into the engine wiring harness loom, then into the PCM itself. But somewhere along the way, it splices out into another leg, which goes into the dash wiring harness loom, and into the instrument cluster assembly. The signal wire coming off that sensor, going to the PCM and speedometer is grey/black, and the ground wire for that sensor is pink/orange.
http://amber.org.uk/~venture/
if you need to install wiring for tow hitch, you can buy the appropriate loom at any auto store. these generally just plug into exising loom and the plug in then gets bolted where it is needed
There is a service flap in the rear quarter panel,inside the boot.Undo the two plastic nuts,release the wiring loom plug and then you can get to the rear lamp cluster.Replace bulbs as required by twisting out the holder.
The Beetle wiring loom wouldn't weigh that much compared to other car wiring looms due to the lack of air conditioning ( at least for the majority of them) and heater systems wiring. Modern vehicles have much heavier looms due to the complexity of electronics involved. I have not found a source that gave weights for wiring looms.