We haven't figured out how much power the PTC heater pulls yet, but it probably a pretty big energy hog if its going to be effective at all. Disabling it should improve fuel economy. Its not hard at all to cool the engine down to 167F by blasting the heat in winter. I don't want it running that much. But, I definitely want the option of turning it on.Conditions for PTC heater to turn on:
-Blower fan on
-Temperature setting: any except MAX cool
-Outside temp 59 degree F or lower (ambient temp sensor is at top of lower grill opening on driver side)
-Engine coolant temp 167 degree F or lower
-Generator output 70% or less
As for the power steering mod, its going to be a controller, not a delete mod. The controller will allow you to dial in exactly how much assist you want from the power steering. You can set it to stock, or you can basically turn it off, or anything in between.