Question about 1997 Chevrolet Tahoe
P1133 O2 sensor insufficent switching (pre converter, left bank)
p1153 ) 02 sensor insufficient switching preconverter right bank
P0420) catalyst system efficiency below threshold left bank
P0151) 02 sensor circuit high voltage pre converter right bank
and p1460 unfortunately I don't have handy..... But REALLY sounds like you need to replace the Oxygen sensors in front of the catalitic converters... There is dual exhaust coming from the engine to one muffler in that truck, there are a total of 2 converters and 4 O2 sensors (1 in front of converter and 1 behind it on both of the pipes) Front ones are definetely shot!!!! Be prepared to put the rear ones in shortly after!!!!! they are about $80 canadian each at the jobbers and probably more at the dealer!!!!!
Posted on Feb 28, 2009
p1460 cooling fan circuit,p1153 ho2s insufficient switching bank 2 sensor 1,p1133 insuf. swit. sen. 1 or bank 1 sen. 1,p420 catalyst system efficiency below threshold bank 1,p152 o2sen. circuit high volt. bank 2 sen.1
Posted on Feb 25, 2009
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Posted on Jan 02, 2017
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