OBD11 Codes

[Jandaw]

OBD11 Generic DTC Definitions lists P0140  as "O2 Sensor CKT No Activity (Bank 1 Sensor 2)"

This is fairly blunt and so I assume I need a new sensor in the back cat.

I can clear the fault with the scanner and by disconnecting the battery but when the engine gets up to temperature after 5 miles the light is back on.

Before I rush out and buy one should I pursue any other avenues and if I need to buy one where are the latest Best Buys please?


  s:bowdown: :bowdown: s:bowdown:    s:bowdown: :bowdown: s:bowdown:    s:bowdown: :bowdown: s:bowdown:

[Wabbitkilla]

OBD11 Generic DTC Definitions lists P0140  as "O2 Sensor CKT No Activity (Bank 1 Sensor 2)"

This is fairly blunt and so I assume I need a new sensor in the back cat.

I can clear the fault with the scanner and by disconnecting the battery but when the engine gets up to temperature after 5 miles the light is back on.

Before I rush out and buy one should I pursue any other avenues and if I need to buy one where are the latest Best Buys please?


  s:bowdown: :bowdown: s:bowdown:    s:bowdown: :bowdown: s:bowdown:    s:bowdown: :bowdown: s:bowdown:

If you search you will see the dozens of times people have talked about this code. You are correct, you need a new sensor, the code refers to the heater circuit failing.