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Summary of change:
'''Cossi Triggerpage''' '''Primary tigger:''' *665 Ohm (with sensor disconnected) *148 mV (with sensor connected, ignition ON, not cranking) '''Secondary trigger:''' *817 Ohm (with sensor disconnected) *0 mV (with sensor connected, ignition ON, not cranking) ** NO pullup: might be very sensitive during cranking. 10..22kOhm pullup to +5V might help ***Tried, but nothing changed. The same result with 10-15-20kOhm pullup to +5V. We get good rpm values, but so far I can't adjust TDC with the ign_tdcdelay value. The LCD and Megatune shows the right RPM during cranking. When I try to positioning ign_tdcdelay, I get only erratic crank angle (measured by strobe) as I change the value: (ign_crank_advance=01 ,crank advance 0.25 degree) *ign_tdcdelay=C8 (100 degree) the timing light shows ATDC 10 degree *ign_tdcdelay=A4 (82 degree) the timing light shows BTDC 70 degree *ign_tdcdelay=AA (85 degree) the timing light shows ATDC 2 degree It's looks OK, but if I use the right crank advance (8 degree through the crank),then get spark BTDC 70 degree again. I can't make spark between BTDC 70 degree and ATDC 2 degree. ----- 2007-08-13 I do some measurement by scope with 15kOhm pullup to +5V on secondary trigger: [http://www.vems.hu/files/MembersPage/KarolyBakos/trigger/ign_on_no_crank.xls ignition ON] [www.vems.hu/files/MembersPage/KarolyBakos/trigger/ign_on_cranking.xls ignition On & cranking] [http://www.metatron.hu/karesz/crank2.JPG Scope screenshot]
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