The stock Toyota gauge does not operate in this way... It sends the reading via a pulsing frequency of grounded/non-grounded. The grounding is still somewhat resisted, and occurring at a frequency fast enough to only allow the gauge windings to heat up a small amount.

Grounding the gauge wire on your Toyota will overheat the gauge windings and permanently distort them. The windings will bend upon contact with the upper limiting peg, and will never rise again (the bend will make normal operation rise only to th level of the peg, anything less will just force it down on the bottom limit peg with more force).



There was a post a while back on the proper way to test these sending units... It was pretty in-depth, and covered all the different types of sending units and gauges. If I have time later, I will search it up, but it might be a couple of days.

Search can be your friend, if you can get it it work right... Which brings up another subject... I noticed I cannot search up a certain thread of mine from 2004... I manually looked, and I can't find it, either. Nothing was against the TOS in it, and I did not delete it... It seems the board lost a bit of history somewhere along the way.

"A young man who does not have what it takes to perform military service is not likely to have what it takes to make a living." - John F. Kennedy

Proud owner of an 88 Montero (with a blown engine).