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Old 03-25-2010, 07:38 AM   #6 (permalink)
micondie
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Location: Western Mass
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moby van - '03 Dodge Caravan SE
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For a good primer on tricking your ECM, read this Auto Speed Series http://www.autospeed.com.au/cms/A_110897/article.htm
What you want to do is trick your ECM into thinking that the air is colder which will cause it to advance timing.
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