cel code 63 (grrrrr)
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Joined: Dec 2002
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cel code 63 (grrrrr)
so i've been running a test pipe with an o2 sim. for about 4 months. it's been running great until now. now i have cel 63...secondary o2 sensor low voltage, high voltage, or slow response. could it be that the o2 sim is just not working right now. any help would be great.
