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P0451 Diagnostic Trouble Code Discussion for May 2021

Fuel Tank Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0451
Help Request Posted
2007 Kia Rio SX 1.6L MIL Lamp on VIN: KNADE123X7
P0451: Evaporative Emissions Control System Pressure Sensor Range/Performance. I'm not the best on electronics and this one has me confused. I replaced the pressure sensor on a guess and was apparently wrong. If I clear the codes they reset within a minute. My scanner shows .47 PSI steady whether the car is on or off. When I unplug t...
May 10, 2021