[QIKDSL]

I got isspro boost,trans and egt gauges.. I got them grounded under the dash. Everything works fine except the egt gauge. Sometimes the egt gauge will bounce around like crazy and sometimes when its not bouncing around it will read like 900 sitting still and them somedays it will read correct.. any idea?

 

[Shagginwagon]

Did you solder the wiring on the pyrometer? This has been know to cause erratic readings. Other wise check the wiring run to see if there are any areas where the wire has run bare and is making contact to some metal. Of course check the connections at ground and power on both ends.