hesitation and her king on acceleration

1990 OLDSMOBILE DELTA 88
107,000 MILES • 3.8L • V6 • FWD • AUTOMATIC
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EDWARD P CAINES
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Car hesitates and here's won't accelerate properly can't press accelerator hard . I replace a oxygen sensor and a air flow sensor . Before this problems I was getting an intermittent code 44 Tried to find problem but couldn't please help I need my car for work
Jan 15, 2014 at 8:25 AM
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JACOBANDNICKOLAS
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44 - Oxygen sensor lean exhaust

Okay, to begin with, the most common cause of a lean fuel mixture is a vacuum leak. The engine needs a metered amount of air and fuel to run properly. If there is a leak, too much air enters the engine causing a lean mixture.

With that said, I need to ask if the same code has returned since the sensor was replaced? Also, have you checked for vacuum leaks? The 3.8L V6 is a great engine, but they did have some problems with intake gaskets leaking.

Let me know.
Jan 15, 2014 at 8:40 AM