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post #1 of (permalink) Old Jan 10th, 2017, 09:17 PM Thread Starter
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P2177/P2188 codes

Hi, previously had P2188 (too rich at idle bank 1) which disappeared for a month after clearing. Today, EML came on again with P2188 and P2177 (too lean at idle after bank 1).

Any ideas what the actual problem is/might be.....seems a bit contradictory having too rich and too lean simultaneously

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