Auto meter gauges - Postive & negative earths??

[pl0x]

Still having problems with my autometer gauges, oil pressure & oil temp

neither of them work yet the autometer air/fuel gauge next to them works fine

Anyone got any idea about wiring them?

Do they need 2 different earths?

ive tryed to follow the wiring diagram and used different cables and wired to different earths etc still nothing??

Atm ive got both gauges wired to the pressure sender as then atleast they move, not right tho, i think its picking up engine vibrations or something as when i rev i the oil pressure goes off the scale and temp goes down abit lol

Im totally lost and dont really wanna take it to a auto sparky as dont wanna get charged for them to look at it and not be able to fix it.

[pl0x]

 keltik said:

from what i remember;

red = ignition switched 12v source

green = sensor signal

blacks = backlight and gauge ground

white = backlight +ve

I dont think the pressure or temp gauges i had needed any wiring to the sensors other than the signal wire.

If you have both gauges hooked up to one sender that could be doing funny things as the resistance values might not be where they should be.

Have you tried with only one gauge connected?

Yea i had them all hooked up right (what i thought was right) and pressure sat at bout 30 & temp at bottom

these have two reds and two blacks? i thought they would just go together but didnt work