Alright Todd, here we go.
I will say it in here but I will also fax this to you Monday.
There are 4 main wire harness connectors that look to be right under the dash-two to the left of the steering wheel and two to the right. They are marked (in the FSM) A-D going from right to left i.e. A is the furthest right connector. Each connector has 20 pinouts-10 top, 10 bottom. They are numbered 1-10 (left to right) on the top and 11-20 (left to right) on the bottom. So, essentially it looks like a rectangle.
OK. The fuel gauge has two pinouts- they are A3 and A4. A5 is the ground of the connector-at least I think so. It shows a test from pin A5 to ground as being "continuity" or "constant". Pin A3 to ground shows a response of "fuel gauge floats up". Pin A4 to ground shows a response of "fuel gauge floats down". With a Multi Meter set to DC voltage, both pinouts should be at .5v i.e. Pin A3 .5v and Pin A4 .5v.
My thought is that these two pinouts might be the issue i.e. loose in some way or corroded.
As well, there exists the actual sending unit which is located/part of the fuel pump. You will need to take out the rear seats for this check. Not too bad though. Take out the seats, seat anchors, scuff plate, peel carpet back and there you will find your fuel cell. All that it says is to test Pin 4 and 5 on the sending unit (top left and top right pins) for a resistance reading or .2-3 ohms. If it is out of this spec, guess what, new fuel pump because the sending unit is integrated.
Good luck. Hope that helps.
