Join Date: Jun 2008
Location: Central California
Throw a 5 gallon can of gas in the back, fill the can and the gas tank, set the trip meter to zero, then run the truck out of gas. You'll have the 5 gallons to put in the tank to get you to a station, and you'll know if your gauge/sending unit is bad or not, and know where on the gauge you will run out for future use. Plus a good estimate on mpg.
Low-tech, but it diagnosed a bad sending unit for me.
2002 Tacoma 3.4 4x4 Ext Cab Auto
Complete ICON Suspension with Deaver 8-Leafs