my pyro guage isn't working, it will stay around 300* all the time. can i replace something or do i have to get a new one. thanks guys

 

probably the thermocouple

 

is that the plug right after the exhaust probe?

 

im sure its somthing diffrent , but i will mention it!
I bought a truck a few years ago, the pyro wouldnt ever work , ordered a new one and went to change it, the old one came from banks and had a short connector on the back of it. took it off gauge works fine! Manf. dont do this now, but if it a older gauge you might check!

 

thanks ill check.

 

it is the probe/ sensor.
gauges don't often go bad. not saying your gauge isn't bad. hard telling from here.