vacume guage & scanguage question

[dmafanp]

excuse my ignorance im new to combustion engines, i want to install a vaccume guage so i can monitor my engine closer and so i can accelerate at the most efficient rate, if i set my scanguage to MAP will this give me the same kind of readings the vaccume guage will give me? thanks !!!

[Daox]

Yep.

Most cars can give you an actual load as a percentage of power, its LOD on the SG, dunno about the UG.

[dmafanp]

are LOD and MAP close to the same thing ?

[Daox]

It depends on the ECU programming. Some engines give you actual engine load as a percentage of power currently available. Some report the load of the engine versus maximum power output. I think most are the former.