Thread: P0171 P0174 Check Engine Light CEL
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Old 10-20-2023, 01:56 PM
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andrewwynn andrewwynn is offline
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P0171 P0174 Check Engine Light CEL
The car runs rich when cold. I will also allow wider swings of fuel trim without an error.
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)
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