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Home >> Chevrolet >> 2000 >> Tracker 4D Utility, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0450: Fuel Tank Pressure Sensor Circuit >> Circuit Description
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Circuit Description

Fuel tank pressure sensor responds to changes in fuel tank pressure or vacuum. Fuel tank pressure sensor signal voltage to PCM varies from greater than 4 volts, with pressure in fuel tank, to a minimum of 0.6 volt with a high vacuum condition in fuel tank (vent solenoid closed).

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