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P0133 Diagnostic Trouble Code Discussion for December 2007

Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response

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Trouble Ticket Help Requests for DTC P0133
Help Request Posted
2001 Volvo S40 1.9L MIL Lamp on VIN: YV1VS29561
P0133: B1S1 O2 sensor slow reaction/response. ... inspection with check engine light on. Scanned system and found P0133 and thought that the upstream O2 sensor was malfunctioning. Replaced with Volvo sensor. Reset computer and test drove to reset counters. Preliminary P0133 popped back up after approximat...
December 26, 2007