My electrical problem is that I believe that the 5 volt voltage limiter in the fuel gauge is burnt out. Temp and fuel gauges are not reading.
Oil Pressure is reading but my wiring diagram shows that the oil pressure guge feeds from sender so I assume that the voltage limiter controls just temp and fuel. Am I correct please?
When we a had the gauge pod unscewed from the dash, but still wired up, we grounded the third post of the fuel gauge through a circuit tester and the tester lit up in slow blinks, does that sound correct ?
Grounding is the last thing you'ld want to do for testing. If you must, keep it brief. That's a way to burn out the resistance (heating) wires.
I'll have to look at the gage back again but the terminals are feed (12 V), then connection going to fuel sender and connection to the board for the other '5V' gages