After two weeks of heaven driving around Tasmania, the boat ride back to the mainland was hell. Middle of Bass straight and a horrible storm overnight. We expected to go down to the cars in the morning and find them all piled up in a corner on top of each other.
Thankfully they were not and away we drove. Got a little down the road though and I noticed my speedo was reading zero!
A few moments later it was fine. This happened a few times on the way hole and eventually threw a code for speed sensor failure.
I did a bit of googling and found this is relatively common.
The solder on the sensor is lead free and when manufactured too little was used with not enough heat and is simple to fix, so not sure if the rough seas caused this or just coincidence.
First jack the car up as high as possible from the rear to prevent oil draining out the gearbox.
The sensor is above the catalytic convertor held in by one bolt.

All the tuts I read online show this is easy to get too.
Well as you can see, I could barely touch it with my finger tips let alone get a spanner in there.
If you have under car bracing, don't kid yourself, removing this bracing is a sinch and access is easy

One bolt and pull the sensor out and disconnect the plug
Here it is out of the car

Chip away the hard green stuff to expose the two cables. Here the wires are sitting on top of the poles. You can see how little solder is there


Re solder the wires to the poles,then fill and seal the terminals with RTV silicone

Reinstall the sensor and bracing. No gasket is needed as the sensor uses a rubber o-ring.
Speedo works a treat, been perfect for over two weeks now. Success
