In order to tap in to the sensor block to access boost pressure, you will need to install a 1/8″ NPT boost tube fitting.
![Yanmar 6LPA Pyro Port Location](https://www.sbmar.com/wp-content/uploads/2018/08/Yanmar-6LPA-Pyro-Port-Location.png)
Remove the cover and locate the plug on the wedge adapter between the exhaust manifold and the turbo. The plug can be drilled and tapped to accommodate the thermocouple (probe) 1/8″ NPT fitting.