Calibrate sensors?
Just about ready to fire the Focus up for the first time in 3 years.
now running with an Omex 710 ecu . We've just read the manual for the Omex and it's says to calibrate the water and air temp sensors by putting them in water and then heating up and cooling down then smoothing out the graph in the software
problem is, everything's buttoned down now and the water sensor is almost impossible to get at
is it absolutely necessary to calibrate the sensors or can we do it once the engines running and heating/cooling the water?