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928: Serial Enabler
Join Date: Sep 2007
Location: Elkhart, Indiana
Posts: 2,929
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They travel through it too. Why else would you use large diameter cable to transmit heavy power? Instead you would use tiny wire and lots of them.
To the main point: did you also clean the other grounds? The electronics including the O2 sensor are grounded to the engine, which is grounded to the frame so-to-speak via the wire you referenced, and essentially to the neg lead of the battery. Gotta get them all.
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Last edited by Landseer; 05-05-2010 at 03:59 AM..
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