Mass Air Flow Question.

4Z WMB

Member
 DALY CITY, USA
I will be replacing the Mass Air Flow on my 2003 Z4 3.0i. Do I have to reset anything after the installation? Please help/ suggest.
 
You don't have to reset anything but make sure the ignition is switched off when you unplug the old unit or the ECU will record a code for low voltage or open circuit at the MAF sensor.
 
You don't have too, but resetting the computer will reset the high and low setpoints used on the MAF...

Just disconnect the battery cable for about 10 min...
 
Back
Top Bottom