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Author Topic: ME7.5 skip pulse at startup  (Read 12491 times)
jtorres
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« Reply #15 on: April 04, 2014, 11:34:28 PM »

Nyet, i donĀ“t want to inhibit just the spark at start up, that would cause the inyectors to flood the engine as you stated.

What i am looking is that the ECU kind of ignore the first pulses from the crank trigger so the engine crank turns but nothing happen: Neither spark nor inyection, until some time after.

That is a function of the megasquirt ecu, it is called skip pulse. Main function to build oil pressure.
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jtorres
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« Reply #16 on: April 04, 2014, 11:43:24 PM »

you could also just remove your fuel checkvalve Smiley

you can also install a starter button and crank it up without the ignition on, but that will be the lazy solution.


If an antilag system can be implemented why this not?
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titi65
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« Reply #17 on: April 05, 2014, 12:10:48 AM »

Have you check my last reply ?
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jtorres
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« Reply #18 on: April 05, 2014, 12:14:55 AM »

Have you check my last reply ?


Yes!

 i can´t find kfztnwakl and tvnwakl at the ME7.1 FR but i will look at the damos.

For the cranking ignition timing: kfzwmnst totally is!


edit: i did look at the damos but kfztnwakl and tvnwakl are not there.


THX!
« Last Edit: April 05, 2014, 12:36:20 AM by jtorres » Logged
titi65
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« Reply #19 on: April 05, 2014, 12:41:54 AM »

You're welcome.
In ME7.4.6, theses datas exists, but I can't find on the documentation ME7.1.

Maybe on ME7.5 . . .
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userpike
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« Reply #20 on: April 05, 2014, 07:55:24 AM »

I'm pretty sure IGNDELAY is not what you want.



pretty sure you are right. the best translation I could come up with said that it only delays the ignition only until the first full cylinder fill, so a max of 1 crankshaft rotation or 360 degrees but the min could be 0 degrees rotation.  I think it has this for emissions reasons.

I'm not so sure there is a "skip pulse" function in me7.5. I spent a good 2/3 hours looking for some evidence in the FR while referencing a ME7.5 fully defined definition file. I do remember seeing IGNDELAYCT somewhere but didn't get to it yet.
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jtorres
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« Reply #21 on: April 06, 2014, 01:54:03 AM »

You're welcome.
In ME7.4.6, theses datas exists, but I can't find on the documentation ME7.1.

Maybe on ME7.5 . . .

The damos i have is for a me7.5 and there is not such parameters named like that in there. Maybe they are named sligthly different.
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