SES light on...

[musali]

My SES light came on my 2001 X5 3.0i. The first time I checked the code, it showed P0365. It was the camshaft position sensor, exhaust side. Replaced that and the SES light came on again within 2 days.

This time it P0505, idle control valve malfunction. Replaced that and the SES light came on again within one day.

Now this time the code is both p0141 (bank 1 sensor 2; heater circuit malfunction) and p0340. (CPS intake)

I read on this forum that P0141 is a false code, and im doubting if P0340 is the real code because the initial code was p0365.

My question is, do both the CPS go out around the same time? I really dont want to keep throwing money on new sensors when they arent bad and the codes are false. What should I do at this point? plus I dont know if I should even deal with P0141 yet.

Thank you,
Mustafa Ali