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Reading codes on '99 s80 S80

posted by  Hendoo on  Sun Sep 18 22:34 CST 2016
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Well, I was able to download the codes.

P1171 and P1181.

Cleared the codes, drove home (~30 freeway miles). CEL is still off.

The codes appear to decode as follows:
>Here are the definitions: (fuel trim = fuel mixture adjustment)
>P1171 ECM-261A Long-term fuel trim, Upper limit
>P1181 ECM-271A Long-term fuel trim, bank 2 Upper limit
(ref:http://repairpal.com/codes-604)

Any thoughts about whether these codes deserve more immediate attention, or should I just drive normally and take action if/when they recur?

Thanks!

-Tom in SoCal






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