Code P114d?

[Z4M-2006]

Ah

Eventuri...

As Argenta says, it will probably have an oiled cone filter..I think they used pipercross ( I maybe wrong there), the oil used to trap debri gets pulled into the inlet and coats the hot wire in the MAF with a residue coating... The DME then receives confusing info from the MAF and will pop a code over time..

Remove MAF and clean with alcohol or electrical cleaner... Let dry and see how you go..
If it happens again junk the eventuri and go back to normal air filter box

 

[MrPT]

The Eventuri uses a dry paper filter. Simota, I think.

I'm not 100% about filter maintenance either. Evolve suggest that you can clean it with compressed air, but that's not something I've heard of before (mind you - never had anything but a stock intake before).