My fuel and temp gauge dont work. I shorted the temp wires at the sender and the gauge didnt move. Key on. I installed a new gauge but Fuel would be nice as the car died on the mechanic and he had to put gas in it. Whoopsie! Anybody got a diagram or have a testing procedure to do?

shem

Where is the needle on the gauge? Does it move at all?

It sits at the 3/4 mark, only moves if I move it. Full or empty it doesnt move

shem

Can you check for power going to the instruments? This will be different from power to the lamps.

If your gauge never moves, make sure it has power.

There is a connector on the dash for the fuel gauge sender wire. Here are the pinouts for the dash connectors (3) http://cliff.hostkansas.com...od_Wiring_pinout.jpg

A continuous wire (Pink) runs from that connector through the right side firewall passage and then splits off just inside the engine compartment.



That wire along with a Tan/White (fuel pump power) and Black (ground) runs down towards the fuel tank. A three wire connector there connects finally to the tank. The fuel tank sender will have a resistance of 0 ohms at empty and 90 ohms at full. You can unplug the connector and ground the pink wire coming from the firewall (key on). The gauge should be at past full with the connector unplugged and should move to zero with the wire grounded.

The two wires to the temp gauge/temp light sender have separate functions. Each wire operates separately. Key on - grounding one should turn on the TEMP light. Grounding the other should cause the TEMP gauge to move from cold to pegged hot.

[This message has been edited by phonedawgz (edited 05-14-2017).]

Phonedawg u da man man! Thanks for the pic, i found the connector and unplugged it and the needle pegged past full. So I gots a bad sender yeah?

Shem

I found this on a web search, ill give it a try. Who sells new sending units anyways?

https://www.fiero.nl/forum/Forum2/HTML/092117.html

shem