Changes by last author:
Changed:
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** if yes, it might be mechanical abnormality of the steel wheel. Is the sensor mounted axially or radially ?
*** Yes, the up-down-up primary pattern repeats. |
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** Yes, the up-down-up primary pattern repeats. => that suggests mechanical abnormality of the steel wheel.
* Is the sensor mounted axially or radially ? * Is it possible that the sensor or wheel somehow vibrates ? (we had that with the torn flywheel dampener causing similar symptom with the VR-signal above 6600 RPM in a double-VANOS BMW S52). For this divby-N (similar to the c270 auditrigger with 135 teeth) the sectrig signal is allowed to move 1 primtrig tooth back'n'forth (but not 2). * When engine stumbles, is the type of trigger-error still the <.fill in exact type of trigger error.> |
| I was able to change the R181 to 235k, with no real improvement(still trigger errors beginning at ~3,500 rpm) |
| I was able to change the R181 to 235k, with no real improvement(still ...fill in exact type of trigger error, just in case... trigger errors beginning at ~3,500 rpm) |
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Yes, this scopeshot looks better. Mean (DC) voltage is still above GND (if there were no symptoms, we would probably be satisfied with that primtrig ... with symptoms, of course we are concerned about everything).
** Is the 18k internal pullup to +5V still installed internally ? |
| ***see question at the top of page |