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Home >> Chevrolet >> 1999 >> Lumina V6-3.8L VIN K >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Fuel Tank Pressure
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Fuel Tank Pressure

Scan Tool Displays 0 to 64 In. H2O / 0.00 to 5.00 Volts. The PCM monitors the signal from the fuel tank pressure sensor to verify that the evaporative emissions control system is operating correctly and leaks are not present. The fuel tank pressure sensor is used extensively for EVAP purge control and EVAP system diagnostics.
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