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BMW 3-Series (E90 E92) Forum
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O2 sensor life
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| 11-09-2017, 03:41 PM | #1 |
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O2 sensor life
2011 335i, AR downpipe, 60 k miles. A few weeks ago I got:
2D15: O2 sensor, delayed response, rich to lean. 2CED: Oxygen sensor after catalytic converter, dynamics, from rich to lean: slow response. I changed out the O2 sensor and cleared the codes. Good so far. While searching for the part I read that issues with a catalytic converter can cause premature failure of the rear O2 sensor. Will the same occur when a downpipe is installed? |
| 11-22-2017, 12:11 AM | #2 | |
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| 11-22-2017, 07:50 PM | #3 |
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I have 336K on 3 of my original sensors...
__________________
A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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| 11-23-2017, 06:20 PM | #4 |
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Hmmm, I just got the 2CED again the other day. Took a few weeks for either of them to come back. Cleared it. Ok so far. As I am in the process of tuning with Justin I have to wonder if the codes aren't tune related. Tune related as it is not yet optimised. Just started the process.
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