Your 2V Brick has an
air flow meter, not a mass air flow sensor. A mass air flow sensor operates differently. Happily, the difference was explained to me by an experienced BMW auto aficionado. Knowing the difference between the two can lend to observers the impression that a feck concerning the engine management system is given, regardless of whether it actually
is given. You never get a second chance to make a first impression.
Anyway, without the data provided by the air flow meter, performance of the Brick's 2V engine is usually fecked-and-a-half. Luckily for us owners, it is an unusually sturdy unit seldom needing service beyond ensuring that its air vane moves freely, its air temperature sensor is not coated with detritus and that its electrical connector is plugged into it to enable the sending of data to the LE Jetronic.
I strongly suggest that
all owners of 2V Bricks not already having done so, read the LE Jetronic training manual—available in the
Service Bulletins~Brochures section of this site—to understand how the engine works and to help them unravel messes like the one
schrockteer is encountering.