Up date, checked that I had 20 ohms across the A and S posts on all the gauges then I hooked my spare fuel sending unit to my meter and marked on it where approximately 25 ohms was then hooked up to my gauges that weren’t working and still nothing till I moved the float to where the meter was...
Forgot to mention the dash isn’t screwed down (worried it with have to come out again)but I did run a ground from one of the screws that go into the metal portion of the cluster all the way to the battery neg.
I started by grounding the sender wires briefly with the key on and the needles moved towards the max, then I bought another new fuel sending unit and hooked up the sender wire to the post on the fuel sender and grounded the sending unit then moved the float up and down, I did this to fuel then...
Not these gauges specifically, I just powered up with the key (5v) and grounded out the sender wire briefly to see if the needle moves which it does on each gauge, is there a different way?
They get screwed into the metal structure of the dash then I ran a ground to the battery but saying that some of the dash light grounds needed to be massaged to get the lights to work
I bought a 67 barracuda roller project, added a 340 4sp with an 8.75, I bought factory replacement wiring harnesses for engine compartment and under dash (previous owner made his own) replaced the circuit boards on the back of the dash along with a ivr that the previous owner had installed on...