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Agoudine · Sep 12th, 2005, 02:12 AM

I've been advised a lot to replace ignition wires, cup and rotor. I bought parts online and replaced: ignition wires and cup (BOSH) and rotor (Japan). Works great - performs better. But I have questions. Why the wires need to be replaced? Plugs,rotor,cup - I understand, they get worn,but my old Prestolite wires did not have any visible signs of damage or rust described in Haynes manual. They look even better than my new ones! And I wonder -it's simply wires-how are some brands better than others and how do they wear out? How do wires affect fuel economy?
Thanks in advance!

Sep 12th, 2005, 02:12 AM	#1 (permalink)
Agoudine Nissan Enthusiast Join Date: Feb 2005 Posts: 71	Ignition system questions I've been advised a lot to replace ignition wires, cup and rotor. I bought parts online and replaced: ignition wires and cup (BOSH) and rotor (Japan). Works great - performs better. But I have questions. Why the wires need to be replaced? Plugs,rotor,cup - I understand, they get worn,but my old Prestolite wires did not have any visible signs of damage or rust described in Haynes manual. They look even better than my new ones! And I wonder -it's simply wires-how are some brands better than others and how do they wear out? How do wires affect fuel economy? Thanks in advance!