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P0153 Diagnostic Trouble Code Discussion for March 2011

Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response

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Trouble Ticket Help Requests for DTC P0153
Help Request Posted
2002 Ford Explorer XLS 4.0L low power at times VIN: 1FMZU73EX2
P0153: bank2 sensor 1 slow response. I have replaced all of the oxygen sensors for these codes, and the light stayed off for about 3 weeks, now back on with same 2 codes. O2 sensor have been replaced twice so far, so I don't think it is that. Any other concerns that pop up causing these codes?
March 08, 2011