Headers and O2 sensors

[konner412]

Recently, as of yesterday morning, whenever I start up my car it throws a check engine light shortly after and idles rough. If I shut it off, clear the CEL and crank it back up, light stays off and car runs fine. The code it's throwing is o2 sensor bank 2. I'm wondering if headers have just finally eaten away at the sensors and it's times to replace? My car has 101k miles and have the AA headers installed since 2017. There is approximately 30k miles on them on the headers. I also just got a revamped tune from Stage FP. They added a burble and the car back fires really hard. Has the flame destroyed the o2 sensors?

[b1aze]

Burble tune is absolutely going to cause issues with the O2 sensors. I still don’t get why people fuckin love burbles. It sounds like the car is broken.

https://www.m3post.com/forums/showthread.php?t=1384890

https://www.m3post.com/forums/showthread.php?t=1440822

https://www.google.com/amp/s/amp.red...unes_creating/

https://www.e90post.com/forums/showthread.php?t=1404485

[konner412]

Originally Posted by b1aze

Burble tune is absolutely going to cause issues with the O2 sensors. I still don't get why people fuckin love burbles. It sounds like the car is broken.

https://www.m3post.com/forums/showthread.php?t=1384890

https://www.m3post.com/forums/showthread.php?t=1440822

https://www.google.com/amp/s/amp.red...unes_creating/

https://www.e90post.com/forums/showthread.php?t=1404485

LOL I absolutely love the gun shots but good to know. Probably not good for the car anyway.

[rjahl]

Originally Posted by b1aze

Burble tune is absolutely going to cause issues with the O2 sensors. I still don't get why people fuckin love burbles. It sounds like the car is broken.

https://www.m3post.com/forums/showthread.php?t=1384890

https://www.m3post.com/forums/showthread.php?t=1440822

https://www.google.com/amp/s/amp.red...unes_creating/

https://www.e90post.com/forums/showthread.php?t=1404485

So why does BMW have burble tunes from the factory? Can't believe they would write a tune that damages O2 sensors.

BTW, I hate the burbles too. I cut back my stock burble times by 50%.

They just drive me crazy. Don't like the extra noise and the rumble under the floorboards drive me crazy.

[b1aze]

Originally Posted by rjahl

So why does BMW have burble tunes from the factory? Can't believe they would write a tune that damages O2 sensors.

Im sure some degree of them is tolerable but to make it sound like gunshots by dumping extra fuel during the exhaust cycle isn’t going to do anything good for the sensor. The sensors are very sensitive and I would imagine the momentary heat/cooling cycle of igniting additional fuel in the header tubes isn’t going to be good for the sensor at all. Do that over and over and over at high RPM and you’re bound to abuse arguably the most critical sensors in the control loop.

[konner412]

Originally Posted by b1aze

Im sure some degree of them is tolerable but to make it sound like gunshots by dumping extra fuel during the exhaust cycle isn’t going to do anything good for the sensor. The sensors are very sensitive and I would imagine the momentary heat/cooling cycle of igniting additional fuel in the header tubes isn’t going to be good for the sensor at all. Do that over and over and over at high RPM and you’re bound to abuse arguably the most critical sensors in the control loop.

I hear what y'all are saying. Just ordered a couple new sensors and going to have the burble removed. ''Twas fun while it lasted. Not trying to have to swap o2s every few months.

[JemBash]

Originally Posted by konner412

I hear what y'all are saying. Just ordered a couple new sensors and going to have the burble removed. ''Twas fun while it lasted. Not trying to have to swap o2s every few months.

Hey bro. I got active autowerke headers as well. Car is very loud it is completely Charles's. I ordered the AA tune yesterday. Is it bad to drive the car with headers without the tune? And do you have a video of your burbles ?!