Pyro gauge acting funny

Pwrcummins · Aug 8, 2013

It's really sparatic. The needle is going every where. Iv checked the connections behind the gauge and there good. No other gauge is acting up. I'll post a video tomorrow when I get off shift. Could the sending prob go bad or the gauge itself?

littleredstroker · Aug 8, 2013

Check connection on thermo. If that's good, try a dedicated pyro ground. , if that's a no go, its more than likely the thermo itself... I chased issues for about 3 months with 4 different gauges before I finally swapped thermo and problem solved

sent while staring at a windowed block

Pwrcummins · Aug 8, 2013

What do you mean by a dedicated pyro ground?

littleredstroker · Aug 8, 2013

Pwrcummins said:
What do you mean by a dedicated pyro ground?

I had all my gauges tied together, started having issues , I unhooked ground wire from the rest of the gauges and gave it its own ground

sent while staring at a windowed block

Pwrcummins · Aug 8, 2013

Oh ok. I'll give that a whirl and give an update. May not get to it today. May be this weekend before I can get to it.

Pwrcummins · Aug 8, 2013

I got to looking at it and pulled the gauge out of the pillar. Wiggle the ground wire going into the gauge and it making the needle go nuts. Wiggled other ground wires and it never moved. Could the gauge be bad?

littleredstroker · Aug 8, 2013

Pwrcummins said:
I got to looking at it and pulled the gauge out of the pillar. Wiggle the ground wire going into the gauge and it making the needle go nuts. Wiggled other ground wires and it never moved. Could the gauge be bad?

I'm sure I.will be corrected if I'm.wrong, but if you take a screwdriver,
And short the two ports out on the gauge, it should max out if its working
sent while staring at a windowed block

Pwrcummins · Aug 10, 2013

I'm goin to try to see if I ran a ground by its self. I looked briefly and it seemed like I did but couldn't tell without really following the wire. If that does or once it's got it's own ground I'm going to try that. So far it hasn't acted up all day.

Betarocker · Aug 12, 2013

I had mine grounded to a bundle. Works better since having its own ground.

Pwrcummins · Aug 17, 2013

Ok so I finally got around to looking at the pyro gauge flickering needle issue. I have it it's own ground and is still having issues. I wiggled the ground wire going into the gauge and it was going nuts. So I think the verdict is a bad gauge. Hopefully auto meter will warranty the gauge.

littleredstroker · Aug 17, 2013

Thermocouple next

sent while staring at a windowed block

Pwrcummins · Aug 17, 2013

Thermocouple?

littleredstroker · Aug 18, 2013

The part that reads the temp, gonna be screwed into the manifold , then have about 8" of steel braiding to two wires, yellow and orange you can get that thermo instead of having to re route the entire thing.

sent while staring at a windowed block