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P0140 Diagnostic Trouble Code Discussion for June 2009

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
2001 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4T3ZF13C01
P0140: o2 sensor b1s2. van came in with check engine light on and found both a/f sensor codes and rear o2 code.Reset light and light comes right back on with the same a/f sensor codes.Dont even have to drive or turn key off and on when light comes on.Fuse and relay okay have power t...
June 25, 2009