Quote Originally Posted by Blacky
One thing to remember when creating calculated PID expressions that use PIDs with both metric and imperial units, is to append the units to the PID name, like this:

If the speed is in mph and the flow is in pound per minute then use:
{SAE.VSS.mph}/({GM.INJFLOW.lbpm}/737.22*3.785412)

If the speed is in km/h and the flow is in grams per second then use:
{SAE.VSS.kph}/({GM.INJFLOW.gps}/737.22*3.785412)

Otherwise EFILive won't know which units to use when computing the expression.

The units are listed in
\Program Files\EFILive\V7\Configuration\sae_generic.txt
in the *UNITS section.
The first entry in the "Code" column is the one you need to append to the PID name.

Regards
Paul
Yeah, I screwed that one up.