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P0452

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P0452 OBD-II Trouble Code: Evaporative Emission Control System Pressure Sensor Low Input
P0452 means there is a issue with the fuel tank pressure sensor or the evaporative pressure sensor. Some causes are a loose fuel gap or a vacuum leak.

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Question
Black smoke and rich fuel the codes P0191 & P0452 and short trim bank 1 & 2. Both at -28.9
Hello. You have 2 separate problems here. The P0191 (fuel rail pressure sensor circuit problem) may just be a symptom - it is reporting suspect fuel pressure on the rail. The fuel pressure on the rail is controlled by the...
Question
My car is showing two trouble codes: P1639 and PO452
Hello. The diagnostic codes you are receiving may be a result of both sensors failing, or a power supply issue. The code P1639 stands for an A/C refrigerant pressure sensor voltage shortage. The second code P0452 stands for the fuel...

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