2015 Edge with the 2.0 ecoboost (39k miles). Had the vehicle at Ford for some electrical issues with the passenger door. A few days after getting it back the CEL comes on mentioning three faulty crankshaft sensors. I was out of town and thats just info relayed from my wife who took it to Advance to have the codes looked up, so it may be bad info. Anyways, took it back to Ford thinking they just forgot to connect something, but they said it wasn't anything they did and they couldn't find anything wrong.

Check engine light came on again few days ago so I went to check the codes.

P051B - Crankcase Pressure Sensor Circuit Range/Performance PERMANENT
P051B - Crankcase Pressure Sensor Circuit Range/Performance CONFIRMED

Cleared the confirmed code, but the permanent one wouldn't go away. CEL did turn off though. The following day, the CEL is back on again.

Google leads me to believe it could be PCV valve related, but I called Oreilly, Advance, and the Ford's parts department....none of them can find a PCV valve for this vehicle. So I guess I won't be replacing that. Now I'm at a loss.

Its going back to Ford this weekend. Any idea if these codes might be covered by the 50k mile power train warranty. Sounds pretty powertrian to me! I'm at 39k so I'm past the original manufacturer warranty.

Any ideas on what might be wrong? I'd gladly buy parts and replace them myself.

 

This may involve a problem with the ecoboost engine and Ford"s solution with a "Catch Can" addition to correct and prevent future engine problems. You might call the service dept and inquire if your vehicle is involved in this correction.