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Old 06-20-2012, 10:17 PM   #5
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Join Date: May 2005
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Location: Montreal Canada, United States
What I Drive: 01 SE + 1989 RX7

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Found this thread while trying to find answer about the exact same issue with my 01 Zetec Focus SE .
A/C no A/C is doesn't affect the issue but it is random and when it does the trouble , I get no DTC either but if I reset the battery the problem goes away for days if now week.
I don't want to change parts just for fun and the Original poster did change a bunch of things and he's having a similar issue.

In my case I'll have rough idle for a few days and after "0" idle.
I rest the battery and gone .

Any tips where to look at ?
Martin !
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