With a genuine replacement MAF meter costing upwards of £170 (dealer price £312.02!!) is there any further diagnostic work that can help determine the cause of the error code. And as well as the error code is deteriorating performance and fuel economy. In attempt to diagnose the problem with more confidence the Android Torque app in conjunction with the ELM 327 interface was used to obtain some basic engine operating data.
This is the air flow rate entering the engine plotted against engine revs.
Next the MAF was cleaned and the air flow rate measured again.
Interestingly the correlation looks cleaner i.e. not so many spurious plots and for reference this is the cleaner used.
