I'd say that between the AFM and hall sensor, it's hard to call one more important than the other. You need both for the engine to work in a useful manner. Sure, it'll idle with the AFM disconnected, but that's all. The Digifant ECU needs what pretty much any FI controller needs. Not sure what there is to discuss about it. It pretty much just sprays in the appropriate amount of fuel (as determined by the AFM) at the right time (as determined by the hall sensor). There are other sensors (temp, O2) that tweak the mix a little, but it's not really that much different (with the exception the obvious mechanical vs. electronic control) than the old Bosch dual-point fuel injection first fielded in the bf109 in 1938. John Bange '90 Vanagon "Geldsauger"
>Does anyone know how Digifant works? I think >that the hall sender input to the ECU is more >"important" than the AFM input. That is, if >you unplug the hall sender when the engine is >running, you'd get NO injection pulse. But >if you unplug the AFM, you'd get a small injection >pulse anyway. > >Anyone agree/disagree? Thoughts? |
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