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m50 crank signal


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Both crank and cam are incorrect polarity in that capture.  Also with the cam tooth being right in the middle of the crank gap could potentially be a problem.  Set the trig 2 like below usually works best in this case (set as hall instead of reluctor):


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  • 3 weeks later...

The zero crossing of trigger 2 is very close to the index tooth on trigger 1 (the first edge after the gap). It may work ok for a short time like this, but any small movement between cam and crank - say due to belt stretch or thermal expansion could cause a trigger error.  Changing trig 2 to hall & rising means you are then triggering of an edge that is further away from the gap so it will have much more tolerance to cam movement before a trigger error can occur.

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