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P1166 Diagnostic Trouble Code Discussion for January 2008

Heated Oxygen Sensor (Bank 2 Sensor 2) Minimum Voltage Monitoring


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Trouble Ticket Help Requests for DTC P1166
Help Request Posted
2004 Kia Rio 1.6L MIL Lamp on VIN: KNADC12594
P1166: Oxygen Sensor System Lambda Bank Controller At Limit (Bank 1). Customer complaint of no power (sometimes only go 20mph). I have never been able to duplicate this. Car runs great but sets code after about the third time of driving.
January 21, 2008