O 2 error codes

[catmanluge]

It takes about 600 miles but keeps coming back

on a 2000 Boxster 3.4

O2 sensors

Bank 2 P1276 code 22 and Bank 1 1275 code 16

Are these the front or rear O2 sensors

Thanks :renntech:

[Loren]

P1275 Signal Delay Time for Oxygen Sensor Aging, Bank 1 – Above/Below Limit

P1276 Signal Delay Time for Oxygen Sensor Aging, Bank 2 – Above/Below Limit

Possible causes:

– Oxygen sensor ahead of TWC

– Leak ahead of TWC or in the area of the oxygen sensor after TWC

– Wiring (oxygen sensors exchanged)

From my experience if the car has more than 60,000 miles these sensors are likely shot.

These would be each sensor per engine BEFORE the cats.

[catmanluge]

Thanks a bunch!

P1275 Signal Delay Time for Oxygen Sensor Aging, Bank 1 – Above/Below Limit

P1276 Signal Delay Time for Oxygen Sensor Aging, Bank 2 – Above/Below Limit

Possible causes:

– Oxygen sensor ahead of TWC

– Leak ahead of TWC or in the area of the oxygen sensor after TWC

– Wiring (oxygen sensors exchanged)

From my experience if the car has more than 60,000 miles these sensors are likely shot.

These would be each sensor per engine BEFORE the cats.