Problems with O2 sensor after cat

[Phil40]

Hi team
I upgraded my exhaust with a new inox exhaust with middle resonator removed but i have an ecu error detected with BimmerLink App
"2C9E : Lambda probe heating after catalyst, activation"

I tried to clear ecu error but still again same error. I think my o2 sensor (the last one after catalyst) is dead.

My question : Until i change this o2 sensor, can i drive safely or engine still working normally or in "safe mode" :? ?

Thanks in advance

 

[tintoverano]

try to test it with INPA as well first to make sure what's going on

 

[tintoverano]

also ISTA +/D has service functions to test sensors

 

[Phil40]

Ok thanks you.
I have a USB cable K+DCan but unable to install correctly INPA / ISTA+. If you have a link manual (by pm) how to install it correctly .... it will be nice Thanks in advance

 

[tintoverano]

I installed it from here https://www.bimmergeeks.net/downloads

comes with instructions in the readme

 

[Phil40]

Thanks

 

[tintoverano]

made a video showing how to test the lambda sensor using ISTA

[youtube]nCBWge_w-eQ[/youtube]

 

[ph001]

My question : Until i change this o2 sensor, can i drive safely or engine still working normally or in "safe mode" :? ?

Thanks in advance

It's really just a cat efficiency thing. You shouldn't experience loss of power or any fuelling problems (unlike with the pre-cat sensors).

Great vid by the way Tinto

 

[Phil40]

Thanks you guys

 

[Phil40]

I tried driving this morning
I had some minors power failures at 2700/3000 rpm. I think i will replace my o2 sensor as soon as possible :lol:

 

[tintoverano]

did you check that it gets 12V?

it may be just connectivity

 

[Phil40]

I will check it first with INPA / ISTA+ (if i install it successfully :lol: )

 

[ph001]

I tried driving this morning
I had some minors power failures at 2700/3000 rpm. I think i will replace my o2 sensor as soon as possible :lol:

...sounds like a bigger problem than just a post cat lambda sensor heater fault to me.

 

[tintoverano]

I will check it first with INPA / ISTA+ (if i install it successfully :lol: )

new sensor won't help w/ connectivity

on my youtube video you can see the steps need to be taken before actually testing the sensor w/ SW

 

[mcbutler]

They can easily be damaged during exhaust work if excess force, hammering etc is used.