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P051D Catch can install

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Old Aug 11, 2024 | 01:34 PM
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Gray11's Avatar
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Default P051D Catch can install

After installing UPR dual valve catch can i got a check engine Light Code P051D Crankcase pressure sensor circuit high. Ive checked immediate wiring nothing looks damaged. Has anyone experienced this?

2018 3.5 L Ecoboost

Last edited by Gray11; Aug 11, 2024 at 04:53 PM. Reason: Engine Identification
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Old Aug 11, 2024 | 02:59 PM
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I did a little research when I was thinking about getting a catch can for my truck. Pressure buildup over time was one of the problems that some people reported. I'm a little surprised that you'd see it immediately. Do you have it set up correctly? Are you flowing against a check valve? I'd troubleshoot air flow through the system to make sure there isn't a blockage.
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Old Aug 11, 2024 | 04:46 PM
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Yah I had everything hooked up proper hoses facing right direction and all that. I removed the catch can and went back to stock. Code is still present even after clearing. I pulled the pcv valve it seems to be functioning correctly. Only thing I can figure is maybe the sensor failed do to debris or oil getting in there when I had it apart. Going to replace sensor and see if that does it. Thats all i can think of
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