Mechanics

OLDSMOBILE INTRIGUE SENSOR PROBLEM

1998 Oldsmobile Intrigue

Engine Mechanical problem
1998 Oldsmobile Intrigue 6 cyl Front Wheel Drive Automatic

what does Catalyst system efficiency below threshold bank 1 mean how can I take care of it
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Louie vazquez
February 26, 2010.



Chances are either you have a bad O2 sensor or the catylatic converter itself is bad. I would say have the O2 sensor checked first.