1 fast z Posted January 5, 2009 Share Posted January 5, 2009 I was looking on ebay and came across this. Out of a 4.0 jeep. I wonder it the spark plug spacing is close enough? Anyone have any sort of measuremets possibly? Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted January 5, 2009 Administrators Share Posted January 5, 2009 Found this, not sure of its accuracy. Courtesy Stan Weiss Quote Link to comment Share on other sites More sharing options...
1 fast z Posted January 5, 2009 Author Share Posted January 5, 2009 Well the problem is that nissan L's are not equal spark plug spacing, and I am curious if the jeeps are or not either. Becuase of the EX and Intake valve positions. Quote Link to comment Share on other sites More sharing options...
1 fast z Posted January 5, 2009 Author Share Posted January 5, 2009 I also wonder if it is infact only three coils? If so 1,6 need to be fired at the same time for a wasted setup. I guess one of us needs to have one in hand to find out everything about it. But it sure looks alot better than most other setups. Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted January 5, 2009 Administrators Share Posted January 5, 2009 It sure looks like a 3 coils on top of the body/frame,i.e. wasted spark. My guess is the High Tension leads for the 1-6, 2-5, 3-4 pairings are strategically routed in the plastic body/frame. Do you know if the igniters are built into the coils or is it just the coils and it utilizes a separate ignition module such as the Ford EDIS-x arrangement? Quote Link to comment Share on other sites More sharing options...
1 fast z Posted January 5, 2009 Author Share Posted January 5, 2009 I dont know, but I would guess that there are not any drivers. I would just use a EDIS 6 module to fire it. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 6, 2009 Share Posted January 6, 2009 From the number of pins on the connector you can determine if there are coil drivers built in or not. If all connections are grouped into one connector: 4 pins = no drivers built in 5 pins = drivers built in Pete Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted January 6, 2009 Share Posted January 6, 2009 I dont know, but I would guess that there are not any drivers. I would just use a EDIS 6 module to fire it. As near as I can tell, Chrysler never built an ignition system with external coil drivers; they always integrated the drivers into the ECU. The only examples of "Chrysler" engines I've seen that had both EFI and an external ignition module were ones built by Mitsubishi. Quote Link to comment Share on other sites More sharing options...
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