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I have a 2015 Focus ST I just removed the catch can oil separator from the valve cover to the intake tube. Now I have gotten the P04DB DTC but the crankcase pressure sensor isn't disconnected. Any answers?
 

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Me too. But my car was in a front end collision. Received car from the collision repair and now it is throwing that same code. Never did this befor.
 

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The gentleman at the collision repair shop used his OBD II scanner and found that the DTC code referred to crankcase ventilation. If anyone has a suggestion, it would be greatly appreciated.
 
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