My Autometer Pyro gauge will work fine for long periods and then will start fluctuating wildly. It has done this since brand new. It acts like it is losing it's ground. I have checked all the wiring twice and it seems to be fine. Does this sound like a t-couple prob or a gauge prob. Are t-couples in this heat range generic? I would like to change the gauge out to a Pricol. If my t-couple is good can I replace just the gauge? Thanks.
Jonny
Jonny