Accuracy of the boost reading on the power FC.
 

For those who are using the PFC with a greddy profec B boost controller...how accurate is your boost reading on the PFC comander. I never look at my boost gauge anymore. I get my boost readings from my PFC. I am curious if the readings are accurate.


Anyone done any tests on this?

The boost reading displayed on the Commander is NOT accurate. This is a well known fact. It is a conversion error in the display (ie, the PFC is reading the correct boost internally, but not displaying the correct boost).

I have my boost gauge T-ed off of the MAP sensor line (not the intake plenum nipple) and my Defi reads 1-1.5 psi higher than the PFC. This is pretty typical, from talking to other PFC owners.

mine seems to read lower than the pfc. maybe i will try to t off on the map sensor and see what happens. my commander always read higher for some reason.