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Old 11-13-2005, 01:47 AM
exploded99 exploded99 is offline
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Re: 2000 explorer with code PO171

Quote:
Originally Posted by RCAID99
System too lean, bank 1 . engine runs ok ,any ideas guys..........
Engine and tranny and mileage helps on this end.

But, engine too lean is often a vacuum leak. Check the vacuum / pcv hoses and see if you can find a problem. Check her over good and if that doesn't fix it, post again for more help.
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