how do you wire a fuel pressure gauge?

[tkhaab_94]

I got this Autometer Fuel pressure gauge. I took it out recently because I put in my wideband. I didn't remember which wires go to this gauge. The back has three prongs where the wires are supposed to go. It says GND, S, and, I. I tried to wire what I thought was the correct wire and it didn't work. So which wire goes to which prong?

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And no, the wires on it in the picture (red and black wire) do not represent Positive and negative.

 

[standard235]

Ground-ground
S-signal from sender
I-ignition aka switched +12V

That'd be my guess...

 

[tkhaab_94]

I think I might of tried that, but I will try again. There is 2 wires coming from the sender. Which one do I use?

 

[tkhaab_94]

No. That combo didn't work.

 

[Jankenshank]

which type of fuel gauge do you have?

install instruction can most likely be found here......

Auto Meter Instructions

 

[tkhaab_94]

^ I'm not too sure myself. I'll check that site out.

 

[Jankenshank]

http://www.egauges.com/pdf/AutoMeter/382g.pdf


the third gauge is your's, looks like your missing the fuel pressure sender though.

glad i could help.

 

[tkhaab_94]

Cool, Thanks, I'll give that one a try!

 

[DSM nOOb]

on some senders i've seen you actually have to ground the sender itself as well as the gauge

 

[tkhaab_94]

Ok, thanks for the tip.

 

[ramsack]

i would run the sensor ground to the gauge ground instead of relying on chassis ground to give you an accurate reading.