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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Fuel Tank Pressure

The scan tool displays in -32.7 to +13.96 mm/Hg or (-17.4 to +7.5 in/H2O). This parameter indicates the pressure or vacuum inside of the fuel tank. A negative value indicates a vacuum. A positive value indicates a pressure.

The scan tool displays 0-5.0 volts. The scan tool displays in voltage the pressure inside of the fuel tank.