Operation CHARM: Car repair manuals for everyone.
Home >> Geo >> 1997 >> Tracker 4x4 L4-1.6L VIN 6 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Fuel Level Sensor >> Description and Operation
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 Level Sensor: Description and Operation

DESCRIPTION
This signal is sent from the fuel level sensor installed in the fuel tank and operates the same as other vehicles.

OPERATION
The PCM uses this signal as one of the monitoring conditions for detecting DTC's. For vehicles with Enhanced EVAP systems, if the fuel level is higher than a specified level, the ECM makes the EVAP Tank Pressure Control Solenoid Vacuum Valve operate so as to prevent liquid fuel from flowing from the fuel tank to the EVAP canister. To accomplish this the tank pressure control valve closes off the fuel vapor line.
pro multis · About Operation CHARM