My definition of Delta_MAP is the actual (not percentage) difference of
the current frames MAP value from the last.
PHP Code:
#Units Low High Fmt Expression
#------- ---------- --------- -------- -------------------------------------------
psi -16 16 .0 "({SAE.MAP.psi})-value({SAE.MAP.psi},frame()-1)"
kPa -105 105 .0 "({SAE.MAP.kPa})-value({SAE.MAP.kPa},frame()-1)"