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)

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Fuel Level Sensor: Testing and Inspection

The PCM uses the fuel level input to determine the expected amount of vapor pressure or vacuum to expect within the fuel tank. The scan tool can displays fuel level in percent for diagnostic purposes. A DTC P0460 will be set if the PCM does not see a change in the fuel level after a certain time.