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Ford/Mercury specific engine codes display P followed by four digits. If you're looking at a generic code, P0131 means a problem was detected with the oxygen sensor on bank 1 (the side of the engine with the #1 cylinder) where the sensor's voltage remained low for more than 2 minutes. The sensor may need to be replaced, or you may have a short or open in the 02 signal circuit that needs to be repaired.
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What page of The Great Gatsby is there is no confusion like the confusion of a simple mind on?
The line "There is no confusion like the confusion of a simple mind" is not found in "The Great Gatsby" by F. Scott Fitzgerald. It is possible that it is from another source or a paraphrase of a similar concept.
98 Chevy Venture Engine dies or tries to die after it has been driven for about an hour Code P131 and P171 once it has cooled down it runs fine until it has been driven about hr short trips are fine?
Probably oxygen sensors, catalytic converter, or gas cap needs tightened.
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