Thread revival!
On the way to work got another pesky EML, plugged in my trusty IOBD and returned the following:
P0139 - O2 sensor, slow response, bank 1 sensor 2
P0159 - O2 sensor, slow response, bank 2 sensor 2
P1146 - Heated O2 sensor 2
P1166 - Heated O2 sensor 2
P1147 - Heated O2 sensor 2
P1167 - Heated O2 sensor 2
I've seen the Heated O2 Sensor twice in the past about 1k miles apart, cleared, no problem. She runs perfect and sounds amazeballz. I'm running Berks HFC with a scorpion cat back, she's been uprevd.
Question is, I have some spacers to go on but not fitted yet, but this time the P0139 and P0159 codes are new entries. I think I know the answer, but does this mean I actually need to replace the O2 sensors this time? If so, would you add the O2 spacers at the same time?
PS - it was unusually cold this morning if that makes any difference to your thinking. Thanks!