P0171, p0313, p0369

Hello ya'll I have recently scanned my 2001 330ci 92,000 and came up with the following:
P071 - System Too Lean (Bank 1)
P0313 - Misfire Detected, Low, Fuel Level
P0369 - Camshaft Position Sensor B - Bank 1, CKT Intermittent

From what I have researched P0313 is referring to the spark plugs, which I am about to purchase some NGK's Laser Platinum Spark Plug (BKR6EQUP).
P0369 I'm guessing is just the intake camshaft position sensor? I'm guessing that is it because I have recently replaced the exhaust camshaft position sensor.
P071 I am still not sure of could someone help me out?

I am planning to do as much diy as I can so please let me know if it is possible.
Also, I have a system service light check on could this possibly be the oil level sensor?? The oil light comes and goes upon start up as well. Thanks

Before you start buying parts I would like to know what scanner tool you used to read the barcodes. Was it a generic code reader? I suggest you have the codes read why a BMW specific code reader.


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I Scanned it from a generic scanner but looked up the codes online.
I'm sure this would still work?

Problem with generic scanners is that they do not read BMW specific codes. Also they can and do misinterpret codes. As previously stated, have the codes read with a BMW specific scanner.


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