||HERE'S A RELIABLE, CHEAP AND EASY FUEL TEMP SENSOR
In an SVO system, the fuel temperature is important, so here's a great little fuel temp sensor.
The temperature sending unit on a VW is small enough to fit in the head of a bolt. The threads are a metric 10 M 1.
It only cost me $10 new. If you are going to salvage one, only 1981 and newer had a temp guage. The machine shop tapped several bolts for free when they heard what I was working on.
I use the factory guage and switch between fuel temp and engine temp. I intend to salvage another VW temp guage and get it mounted.