AFB Failure: Troubleshooting Intermittent Issues

Hi!

I picked up my car from the workshop today and checked the error codes.

I noticed a section that mentioned something like 'needle injector - intermittent fault.'

The workshop, however, did nothing in this regard and did not charge anything for it.

I'll try to find the exact wording later... what could it possibly be?

I don't really have any major performance issues, except that my car seems to be constantly being compared to every other 316i out there... I've already come to terms with that. And if there are any issues, replacing the mass airflow sensor (MAF) usually fixes them and improves performance.

Regards,
Felix.