[kern417]

Forgot to add my Injector video from a few weeks ago

[cxmplex]

Originally Posted by kern417

You guys can believe what you want, but there are plenty of discussions around the secondary O2 controlling fuel trims. Here are a bunch of threads discussing the topic across various platforms. Again, feel free to do your own research and search around.

https://www.e90post.com/forums/showthread.php?t=930267
https://www.bimmerforums.com/forum/s...fect-fuel-trim
https://www.m5board.com/threads/func...ensors.162711/

Wouldn't this be neglible if you had a custom tune (tuner would be aware of the lack of the 2nd o2 sensor)?

[BMWILUVU]

Originally Posted by cxmplex

Wouldn't this be neglible if you had a custom tune (tuner would be aware of the lack of the 2nd o2 sensor)?

Besides forum discussions, noone yet has provided any hard facts in BMW documentation (ISTA, tech bulletins, etc) about how the downstream O2 is used to affect the fuel trims or to calibrate anything. People claim LTFT drift on spacered downstream O2. I have no FT drift.

[kern417]

Originally Posted by cxmplex

Wouldn't this be neglible if you had a custom tune (tuner would be aware of the lack of the 2nd o2 sensor)?

The point is that you can't just remove or disable the 2nd o2 sensor. Even with a custom tune.

[PrematureApex]

Originally Posted by kern417

You guys can believe what you want, but there are plenty of discussions around the secondary O2 controlling fuel trims. Here are a bunch of threads discussing the topic across various platforms. Again, feel free to do your own research and search around.

https://www.e90post.com/forums/showthread.php?t=930267
https://www.bimmerforums.com/forum/s...fect-fuel-trim
https://www.m5board.com/threads/func...ensors.162711/

Did you read the threads you posted?

None of them provide any evidence/data/etc. that BMW uses the rear o2 for fuel trims.

In fact, the most informative thread explicitly says BMW does not use it in that matter, although other manufacturers do.

A mere single poster saying "the rear 02 is used for fuel trim adjustments", is not a discussion on the topic, nor evidence that the statement is true.

Fro those three threads, you've come to the conclusion that BMW does it? That cannot possibly be the basis for your belief...

[kern417]

Adding another to the list. I know most of us know this code isn't important but I still tried to get more information on the cause.

[kern417]

A/C Blowing Warm

[kern417]

Been a while but today's video covers a unique issues that some B58 owners have experienced. Hope this helps

[vinskmd@gmail.com]

Originally Posted by PrematureApex

Did you read the threads you posted?

None of them provide any evidence/data/etc. that BMW uses the rear o2 for fuel trims.

In fact, the most informative thread explicitly says BMW does not use it in that matter, although other manufacturers do.

A mere single poster saying "the rear 02 is used for fuel trim adjustments", is not a discussion on the topic, nor evidence that the statement is true.

Fro those three threads, you've come to the conclusion that BMW does it? That cannot possibly be the basis for your belief...

I’m new so bear with me lol. The technical exploded B48/46 thread that discusses the B48 engine in the exhaust section regarding the broadband O2 sensors working in conjunction with the Voltage regulated sensor that’s positioned post Cat. It states the AFR is adjusted in that if too lean, the voltage sensor will charge O2 ions to remove them from the mixture, likewise will add O2 if the mixture is too rich. So doesn’t this mean that the post cat sensor is working with the broadband sensor to regulate the AFR?

[weehe126]

Originally Posted by vinskmd@gmail.com

I’m new so bear with me lol. The technical exploded B48/46 thread that discusses the B48 engine in the exhaust section regarding the broadband O2 sensors working in conjunction with the Voltage regulated sensor that’s positioned post Cat. It states the AFR is adjusted in that if too lean, the voltage sensor will charge O2 ions to remove them from the mixture, likewise will add O2 if the mixture is too rich. So doesn’t this mean that the post cat sensor is working with the broadband sensor to regulate the AFR?

I can't tell if there is a language issue here. You think an O2 sensor is capable of producing O2 gas?

[1ghostedb58]

Originally Posted by luca10

Subscribed 👍🏽 is it a common issue to get the emergency call malfunction code or is that only me?

i have the same in my 2016 i had a 14 335 and never had the issue bought the 340 and it came on 2 days after

[mixmastermike]

I just had O2 codes pop up...

Wheres the best place to pick up new sensors? I saw that FCP were back ordered and I seem to remember a post on another thread with a link to a suppler that was a good bit cheaper.

[mike082802]

Rockauto

[Bashor77]

Just replaced the stock turbo with a Vargas GC+. Tried 2 different aftermarket intakes and still getting the 160504 code for Crankcase Ventilation Hose Disconnected. Replaced all hoses and still limping around. No boost. JB4 clears for a second and reappears. Can someone tell me how I can get this thing fixed and start reaping the benefits of my new turbo?

[kern417]

Originally Posted by Bashor77

Just replaced the stock turbo with a Vargas GC+. Tried 2 different aftermarket intakes and still getting the 160504 code for Crankcase Ventilation Hose Disconnected. Replaced all hoses and still limping around. No boost. JB4 clears for a second and reappears. Can someone tell me how I can get this thing fixed and start reaping the benefits of my new turbo?

pretty sure that's normal. on gen 2, the heater is built into the turbo inlet. when you replaced the inlet, you removed the pcv hose connection.