Erratic Manifold Pressure 912ULS

It may indeed.

You might also consider mounting the sensor remotely - on the firewall/engine frame to reduce the impact of heat & vibration

That makes sense…like they want us to do for the oil pressure sensor too 

Do you remember what kind you got? Looking at this one 

Sorry Michael - small confusion - my first comments related to an analogue VDO  gauge, with a vacuum tube going from the Balance Tube T piece, to the gauge mounted on my panel - supper KISS.

I understand…thank you for your help.