Where is your boost gauge suppose to be at when you car is turned off??

 

whatever it was at then the power was lost.
Its not really important.

the important one is when you put your key to the ON position before starting.
it SHOULD be right on 0.

good way to check if its reading ok.

 

i think it just sits at 0, but i never really looked at it before

 

Depending on your elevation, it wont read exactly Zero. Sea level and close too, it should be Zero, higher altitudes will show slightly above Zero. This is with the key on, engine off.

 

mine reads in between -10 and -20

 

Yeah mine goes straight to -20 whenever i turn my car off

 

yeah so does mine... every time... sometimes it will sit on zero... rarely though