On Wed, 22 Feb 2017 17:56:25 -0800 (PST), Garrett Fulton
wrote:

v
Don't have to read it. I was a mechanic for many years. They've been
doing it for years. I've worked on a lot of vehicles with the "idiot
guage" including my last Chryslers and my 1885 Pontiac Trans Sport
3.8. Most of them can't even be converted to a full guage by
replacing the sensor because they do NOT have a resistor in the
circuit. The meter is designed to go half scale when the sensor is
grounded.