Waste spark system?
08-26-2009, 10:24 AM
#1
1st Gear Member
Thread Starter
Join Date: Oct 2008
Location: Canada
Posts: 129
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?
08-26-2009, 02:39 PM
#4
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
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...
08-26-2009, 02:51 PM
#5
6th Gear Member
Join Date: Oct 2006
Location: Texas
Posts: 10,551
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...
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