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Old 04-19-2012, 02:32 PM   #1
GeeWiggles
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Join Date: Mar 2012
Location: Hopkinsville, Ky
Posts: 152

1997 SL2
Default Engine lean bank 1 o2 sensor code

Just checking, but an engine too lean code, loss of power around 3-4k rpm and carbon build up on the plugs would denote faulty code from the upstream o2 sensor, correct? If it were actually running lean, there wouldn't be carbon build up on the plugs after such a short while. Just want to make sure before I buy an o2 sensor if it could be something else.

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