Question about 1997 Buick Century
According to blueextc3221 this is:
GM p1133 = Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
more than likely you have a bad oxygen sensor...the primary oxygen sensor in the exhaust BEFORE the catalytic converter.
Posted on Jul 06, 2010
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Posted on Jan 02, 2017
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