Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Fuel Tank Pressure

Scan tool displays in 0 to 5.00 volts or -32 to 32 (in/H2O). This parameter indicates the pressure/vacuum inside of the fuel tank. A negative value indicates a vacuum. A positive value indicates a pressure.