P0135 HO2S Heater Performance Bank 1 Sensor 1
P0153 HO2S Slow Response Bank 2 Sensor 1
P1133 HO2S Insufficient Switching Bank 1 Sensor 1
So it looks like you're showing problems on both oxygen sensors upstream of
the converter (both banks). Could be they're both bad, or some kind of
common connection problem or something..
Robert Hancock Saskatoon, SK, Canada
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