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12-09-2016, 06:06 PM
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#1 | |
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AF Newbie
Join Date: Dec 2016
Location: Ogden, Utah
Posts: 3
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help 02 cougar
is it possible that the egr could cause a miss on cyl1 and 3 only?
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12-10-2016, 07:58 AM
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#2 | |
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AF Enthusiast
Join Date: Aug 2004
Location: Porter, Indiana
Posts: 890
Thanks: 7
Thanked 74 Times in 72 Posts
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Re: help 02 cougar
I'm not familiar with that year, so I don't know if it has a COP (Coil on plug). What I do in that type of situation is swap the 1 and 3 with the 2 and 4 spark plugs and COP's. Then see what happens after clearing the codes. If it comes back but on the 2 and 4, then it is a good bet those COP's are bad. Replace them and all new spark plugs. If it stays with 1 and 3, check the wires going to the COP's. Not familiar with what engine is in your car, but a bad EGR or one of the crappy designed intakes will foul the plugs closest to the EGR and require those plugs to be cleaned on a regular basis.
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