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2003 Dodge Neon Question: po 171, car too lean, oxygen sensor in bank 1



Dorjan, Lombard, IL, October 02, 2009, 14:58

i have done about 4 scans and they all said car too lean, PO171. OBD2 said oxygen sensor detected in bank 1 detected a lean condition (2 much oxygen in the exhaust). What do u recommend change the oxygen sensor.

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  • Answer #1

    October 02, 2009, 15:15

    Do NOT replace the Oxygen Sensor!! P0171 means that the system is ACCURATELY detecting a lean air/fuel ratio. If it was an Oxygen Sensor problem, there are many other codes for that. go to this article that I wrote about tracing down a P0171 code. it has helped several people. http://repairpal.com/OBD-Code-P0171-and-P0174

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