What does defueling boost mean?

What does defueling boost mean?

Defueling is a general term for when the engine governor restricts fuel delivery for engine preservation. IE: If you mash the accelerator to the floor, the engine should rev to a preset RPM, then Defuel.

What causes defueling?

Defueling is when the PCM sees something wrong with the operation of the motor and restricts the fuel in order to protect its self. Some causes are over boost, high EGT’s, high IAT’s, etc. etc.

What is defueling on tuner?

Defueling is essentially setting a parameter at which the tuner will cut back fuel so that you don’t exceed said set parameter. Typically they’re set for boost levels, EGT’s, coolant temp, trans temp.

What does defueling coolant mean?

Defueling mode would limit fuel so temps wouldnt go over the set limit, so if if the coolant temp is set at 210 then it would limit fuel to make sure the motor doesnt over heat.