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-   -   Waste spark system? (https://mustangforums.com/forum/4-6l-general-discussion/558844-waste-spark-system.html)

kln5014 08-26-2009 11:24 AM

Waste spark system?
 
Might be a stupid question, but I just want to make sure. Are the modulars a spark waster system, as in two spark plugs fire at the same time, even though the one does not actually ignite? Or does each cop only fire one at a time?

jwog666 08-26-2009 11:27 AM

the coil on plug version is not, the older twin coil pack with plug wires found on some modulars is.

kln5014 08-26-2009 12:03 PM

Great, thanks for the fast response!

cliffyk 08-26-2009 03:39 PM

One thing that the COP system does do is fire each plug 3 times at lower rpms. Being a geezer this surprised me first time I saw it (I kept playing with the scope settings trying to eliminate the "ghost" traces. It is apparently, from what I have learned, pretty common with newer cars, to clean up emissions at idle...

http://www.paladinmicro.com/images/COPMultiStrike01.gif

H0SS302 08-26-2009 03:51 PM

Quote:

Originally Posted by cliffyk (Post 6448908)
One thing that the COP system does do is fire each plug 3 times at lower rpms. Being a geezer this surprised me first time I saw it (I kept playing with the scope settings trying to eliminate the "ghost" traces. It is apparently, from what I have learned, pretty common with newer cars, to clean up emissions at idle...

http://www.paladinmicro.com/images/COPMultiStrike01.gif

LOL you got more stuff tested on your car than OEMs do most likely. Good post.


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