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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 163 (Engine Controls And Fuel - 2.7L (L3B) - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P0451-P0454 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

P0451 

Fuel Tank Pressure Sensor = Not within a calibrated range

P0452 

Fuel Tank Pressure Sensor = Less than 0.15 V - For greater than 10 s

P0453 

Fuel Tank Pressure Sensor = Greater than 4.85 V - For greater than 10 s

P0454 

Fuel Tank Pressure Sensor = Signal Erratic

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