Quote:
Originally Posted by rayhennig
Your car does have an air flow sensor, but a mechanical one. You can see the large flap under the air filter assembly. The flap descends as more air rushes into the engine. It 'senses the air flow'.
As already said, I would start with simple, cheap issues like eliminating every possible inlet vacuum leak. That may improve things but you are in the dark trying to diagnose idling problems if there are leaks.
Bonne chance.
RayH
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Sigh. You know what I meant.
Yes the M103 CIS has a mechanical air flow meter, a huge contraption beneath the air cleaner that some have mistaken for a throttle body since it looks like one. It actually sits on top of the throttle body. It has a potentiometer on the side of it. The signal from that potentiometer is used by the engine computer.
What it doesn't have is what has become known as a traditional MAF or mass air flow sensor. This is typically a black plastic cylinder with a fine wire suspended inside of it. This takes up much less space than the mechanical beast and does the same job. These units were used in the M104 HFM engines starting in 1994.