new oxygen sensor now have p0134 code again

[01silveralero]

replaced the o2 sensor last weekend run it for like 60 miles then it cleared itself. couple days past then p0134 o2 sensor CKT code stating no activity in bank 1 sensor 1 (the same one i just replaced) went into o2 sensor tests and it was reading..................so what can be the problem?

[rustyballs_69]

Check the wires over and the connection. You might have pulled a wire loose from the plug.

[01silveralero]

but why would it clear itself and then come back that is why im asking this it was all clear and go for like 3 days then it came back on.......

[rustyballs_69]

What kind of sensor is it? It maybe faulty.

[Kilroy]

You could of loosely put the copnnection back on, and it held long enough to clear the code, then the connection came loose??? Also, did you put an aftermarlet sensor on, or an OEM sensor? Used or new?

[01silveralero]

You could of loosely put the copnnection back on, and it held long enough to clear the code, then the connection came loose??? Also, did you put an aftermarlet sensor on, or an OEM sensor? Used or new?

new bosch o2 sensor.