WHAT IS THE MOST LIKELY CAUSE OF A DTC 41?

Tiny
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  • 1988 FORD TAURUS
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WHAT IS THE MOST LIKELY CAUSE OF A DTC 41?
Monday, February 4th, 2013 AT 12:40 AM

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Tiny
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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.
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Monday, February 4th, 2013 AT 2:16 AM

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