Quote:
Originally Posted by Mrdosedriver717
well with the potientometer on there it was still having problems. I took it out and drove it and under load at about 6k rpm it glitched again and caused the timing to drop out or something.
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Ouch. That hurts.
But you're asking a lot of the MS' non-adaptive VR circuitry to reliably discern VR signals from 300-6K+ rpm.
Basically, at the MS you're seeing
- the generated VR signal, that increases in frequency with rpm increases, PLUS
- EMI, which may also increase as RPM increases (especially if it's coming from spark plug wires), PLUS
- Crosstalk from the other VR sensor(s), which may also increase with RPM
In a non-adaptive system, if you've got it set with enough sensitivity to synch at cranking speed, at some point (dependent on noise, crosstalk, etc) it's going to be overloaded and will never be able to reliably sense zero-crossings.
If I'm not mistaken, EDIS is an early example of an adaptive system.