Porsche 924S/944 airflow meter in action

Description

I put my camera and a flashlight inside the airbox to video what the AFM actually does while driving at different speeds/loads. I started out with just normal driving before getting on the main road for a 1st-2nd-some of 3rd run, taking it to redline. The big question I've always wondered is whether or not the flap ever opens completely, and when...and it looks like it never quite reaches the fully open stop. Then on to some running at different throttle positions in different gears.

Keywords

Porsche, 924S, 944, Bosch, Motronic, air, flow, meter, AFM, video, inside, airbox

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