BMW Questions? Ask a BMW Repair Expert for Answers.
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.I assume you have a lack of spark, can you also check to see if the engine has injector pulse as well as proper fuel pressure and good compression and post back with the results and we can work from there to try and help you get this resolved.
A lack of signal from the HO2S should not cause a no start. If your getting injector pulse as well as proper fuel pressure and your compression checks okay then the engine should start, have you verified you have proper fuel pressure?
A vacuum leak would not usually cause a no start . Your fuel pressure sound okay so did you ever check and see if you are getting injector pulse?