| My previous diagnosis with the resetting tool was incomplete. I have done a new diagnosis and have the following information:
Table 0F in the tool manual:
Hexadecimal tool code BMW dealer code
A4 - ambient pressure sensor 164
1A - mix control, off idle cylinders # 1-4 26
1B - mix control, off idle cylinders # 5-8 27
The dealer calls the codes 1A and 1B:
code #26 - multiplicative mixture adaptation bank 1, control limit reached
code #27 - multiplicative mixture adaptation bank 2, control limit reached
code #164 - atmosphere pressure sensor
This could be a sticky PCV valve. Does anyone know if these cars have a PCV valve that could be clogging or sticking and where it is?
Thank you. | 
