Isspro EV pyrometer box

[crpower]

My EV series pyro is acting funny, and I believe it’s the little box just wondering if anyone has one laying around that works?

 

[BigPapa]

My Autometer pyro got to where it would jump around wildly and sometimes peg down below zero. I grounded it to the engine and that fixed it.

 

[95cummins5.9]

My isspro did this. Replaced the temp probe to fix it.

 

[crpower]

My isspro did this. Replaced the temp probe to fix it.

I did that, sometimes when I mess with box It starts acting right. Maybe I’ll just open it and see if there is any lose wires.

 

[Snedge]

I did that, sometimes when I mess with box It starts acting right. Maybe I’ll just open it and see if there is any lose wires.

I'm guessing here, but that stepper motor (little box) is probably sealed up with a rubber or silicone block that prevents vibration. In other words, I doubt it's repairable.