I have a problem with my 2007 525i erratic idle I scanned the vehicle came up with code 1415 replaced the MAS New from BMW it didn’t work service engine light went light came on I put my old Sensor in no light on just erratic idle need help please. Just frustrated I did have the starter replaced about 2 months ago I was at work and I couldn’t do it myself I think the problem may be there but repair facility refuses to look into it for something they might have been missed thank you