As I mentioned a few posts back the only thing I intend to do with the EST line is watch for the falling edge to know when to fire the currently sequenced coil that will already be charged. Also to get a running "picture" of spark advance.
Multiplexing or gating the EST line may be what it will fall back to for limp mode / loss of high res signal.
The more I think about this the more I'm tempted to also monitor ECT, MAP and possibly TPS. But I need to get it measuring RPM and spark advance first.
edti: I'm curious if anyone has a dead opti from a 94 or newer they'd be willing to part with. I have an extra optical sensor so I'd just need the wheel, spindle and hub minimally.
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