mine used to rattle like a right tw*t under full boost so just took it out n replaced it with a digital one!
Mine doesnt even sit on zero when the engine is off....
Nah mines, waaaaaayyy off, like -10 when switched off. Any ideas what i can do? Only works properly sometimes.
Mine's the same (Autometer Ultralite). Sits at abut 1psi with engine turned off.
Could this mean it overeads?