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
I use the factory guage and switch between fuel temp and engine
temp. I intend to salvage another VW temp guage and get it
IT IS ON THE ENGINE
It's more accurate when it's insulated.
The other arrow points to the connection for the VACUUM GUAGE.
This guage tells you if lines or filters are clogged or are
beginning to clog. It actually allows you to monitor many
things. It won't work on many diesels like Mercedes (at least
I haven't figured out how yet). I concider it to be manditory
for VW diesel/SVO conversions.