I have this BMW that it's misfiring I read the codes and gave me this, I'm not sure to start by changing the 02 sensor or just replace the pvc valve, i don't have equipment to check a vacuum leak so I'm kind on guessing that's on the pvc.

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DTC report

Selected brand: BMW

VIN: WBAFR1C51BC738949

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============1==============

P0301

Raw code: 0301

OBDII: Cylinder 1 - misfire detected

BMW: Cylinder 1 Misfire Detected

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============2==============

P2096

Raw code: 2096

OBDII: Post catalytic converter fuel trim (FT), bank 1 - too lean

BMW: Post Catalyst Fuel Trim System Too Lean

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============3==============

P2196

Raw code: 2196

OBDII: Heated oxygen sensor (HO2S) 1, bank 1 - signal stuck rich

BMW: O2 Sensor Signal Stuck Rich

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============4==============

P114B

Raw code: 114B

OBDII: Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 1

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============5==============

P0300

Raw code: 0300

OBDII: Random/multiple cylinder(s) - misfire detected

BMW: Random/Multiple Cylinder Misfire Detected