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  #1  
Old 10-30-2014, 08:00 PM
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Join Date: Aug 2005
Location: Napa Valley
Posts: 345
D-Jet triggering.

Trying to find a graph that will show me at what points on the crank cycle the
triggering points in the dizzy on my D-Jetted M110 send there pulse to the ECU.
Any info appreciated.
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  #2  
Old 10-31-2014, 06:34 PM
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Join Date: Jan 2012
Posts: 5,798
From my air cooled VW days ( Type 3 / 4 and Porsche 914 ) , the cam in the dist for trigger points is an eccentric that fires each set of points once per dist rev.

The points are opposite each other and are there to sync the injector pulses. On a 4 cyl the injectors were fired in pairs, One fired into a closed intake valve and the other in an open one. From what I recall, 1/2 of the required fuel was inj per firing but don't quote me on that.

In any event, look around some Porsche 914, Volvo, SAAB, Jag sites as these cars used D jet.
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  #3  
Old 11-02-2014, 03:41 PM
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Join Date: Aug 2005
Location: Napa Valley
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I quit stalling and made a graph. Hope it might help someone else.
Attached Files
File Type: pdf Fuel Inj.pdf (135.6 KB, 65 views)
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  #4  
Old 11-04-2014, 11:21 AM
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Join Date: Aug 2014
Posts: 10
Hi,
look at oldtimer.tips - D-Jetronic Teil 7: Impulsauslöser (Gebiss)
You find a graph there annd the owner of the site will answer all possible questions in English.

Regards

Norbert Fischer
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