1995 Ford Explorer ford codes

1995 FORD EXPLORER
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LISA RUGAN
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Engine Performance problem
1995 Ford Explorer Four Wheel Drive Automatic

what is code 172, 10, 341, and 543 and what do they mean?
May 27, 2010 at 9:19 AM
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KAZ358
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172 heated oxygen sensorindecates lean condistion, right side

10 dunno

341 octaneadjust service oin open

fule pump circuit open, battery to PMC543
Oct 20, 2010 at 3:40 PM