History of MartinFranck/Projektstate
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2006-03-16 04:43:08 . . . . MembersPage/MarcellGal [investigating dwell]
2006-03-16 04:43:08 . . . . 3E6B0C5B.rev.stofanet.dk [[Ignition problem, Question]]
2006-03-16 04:43:08 . . . . MembersPage/MarcellGal [tach implementation concerns]
2006-03-16 04:43:08 . . . . 0x50a410a9.kd4nxx13.adsl-dhcp.tele.dk [Tach quistions, Marcell ore Dave]
2006-03-16 04:43:08 . . . . MembersPage/JimW [h[2] eval. others pls confirm. power supply a.]
2006-03-16 04:43:08 . . . . 0x50a410a9.kd4nxx13.adsl-dhcp.tele.dk [quistions too JimW]
2006-03-16 04:43:08 . . . . 0x50a410a9.kd4nxx13.adsl-dhcp.tele.dk [cleaned up a bit]
2006-03-16 04:43:08 . . . . 0x50a410a9.kd4nxx13.adsl-dhcp.tele.dk [cleaned up a bit]
2006-03-16 04:43:08 . . . . MembersPage/JimW [tach reading answer]
2006-03-16 04:43:08 . . . . 0x50a410a9.kd4nxx13.adsl-dhcp.tele.dk [Tachometer problems]
2006-03-16 04:43:08 . . . . 0x50a410a9.kd4nxx13.adsl-dhcp.tele.dk
2006-03-16 04:43:08 . . . . www-cache.iha.dk [Fired up the engine for the first time :)]
2006-03-16 04:43:08 . . . . MembersPage/MarcellGal [test ignition out infrastructure with mdn.. before cranking - take care]


Changes by last author:

Changed:
I can´t figur it out with the starting dwell, I have looked on DummyIgnition. But if I start carefully with 2.5 msec, is´nt that okay too start with?
ign_dwelll4=27 # hex(27)=dec (39) ; 39 * 64 us = 2500 us dwell

is a good starting value, but depending on your coil, you might need to go higher to fire powerful enough spark at boost.

See "Measure current consumption" section on DummyIgnition.

Ignition Problem

In the high RPM area (above ... RPM) and only during driving (not in neutral) when pushing the throttle (above MAP > ... kPa ), the spark seems too weak.

Study DummyIgnition a bit. Igniting rich mixtures at high-boost is often demanding.

Document your setup (please split your ignition related documentation to a subpage) so people get a chance to help you:

* coil type and resistance

* sparkplug

* lambda value at problematic loadsites

* config. I have tried too change the dwell time in megatune (up to what values ...?) but the problem is still there

* any measurements (current at known RPM)

The VR sensor seems to be good if the RPM signal is OK, and wheel-error does not increase after engine is started.

Deleted:
2.5 msec

x=2500/64 x=39 Hex(39)=27

so:

ign_dwelll4=27 # hex(27)=dec (39) ; 39 * 64 us = 2500 us dwell

Deleted:

Ignition Problem

When I run the in the high RPM area and only when I am driving, not in neutral when I am pussing the pedal, its like the spark is being blowen out, I have tried too change the dwell time in megatune but the problem is still there, what can I do too fix this problem?

I have tried too change the VR sensor and the coil, but it is´nt helping