Mechanics

FORD TAURUS SENSOR PROBLEM

1988 Ford Taurus • 89,000 miles

WHAT IS THE MOST LIKELY CAUSE OF A DTC 41?
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Guest
February 4, 2013.



41 oxygen sensor circuit indicates system always lean

Check for vacuum leaks, low fuel pressure, a leak in the exhaust system ahead of the oxygen sensor, restricted injector due to varnish buildup, and a leak in the fresh air tube between the mass air flow sensor and throttle body.

Caradiodoc
Feb 4, 2013.