Can altitude affect fuel tank pressure?

Yes — driving up mountains changes ambient pressure, but the ECM compensates for this.

Is this sensor related to fuel gauge?

No — the fuel tank pressure sensor monitors vapor pressure, not fuel level.

Low Severity

EVAP System

Fuel tank pressure sensor readings are erratic or out of range.

Common Fix

Replace fuel tank pressure sensor

Estimated Cost (DIY)

$30 - $80

Failing pressure sensorlikely

Intermittent connectionpossible

Need to read or clear this code?

Can altitude affect fuel tank pressure?: Yes — driving up mountains changes ambient pressure, but the ECM compensates for this.
Is this sensor related to fuel gauge?: No — the fuel tank pressure sensor monitors vapor pressure, not fuel level.

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