[womey31269]

Hi, I have a problem that is driving me crazy with the "oxygen sensor". I had this 3 error codes: 284E00 283400 282E00, normally I just delete them and appear again when car does DPF regen.

Today I changed the lambda that's under the car, after the dpf, as I read that this error codes are related with that specific lambda (car has 3 or 4 of them).

Now it throws another error that I can't find on Google, 285400 and I don't know why, and I'm kinda sure that will throw more errors when a dpf region will occur.

Here are some photos of the error and some more info:





Anybody has some idea about what is happening? And I'm almost 100% sure that more errors will show up when the car will do the first dpf regen.

Thank you!

[womey31269]

nobody?

[chipguy]

I will give it a try. Seems like you have an intermittent problem. Frequency is 18 while the healing counter is 40. I believe that means sometimes the fault is there and sometimes it is not.

I would clean the pins inside the connectors for that sensor. Also in ISTA, you can read the live data for that sensor.

[womey31269]

Originally Posted by chipguy

I will give it a try. Seems like you have an intermittent problem. Frequency is 18 while the healing counter is 40. I believe that means sometimes the fault is there and sometimes it is not.

I would clean the pins inside the connectors for that sensor. Also in ISTA, you can read the live data for that sensor.

Thank you, but, what data should i look for when i check for live data?

[chipguy]

This video has very good information

[AnotherM]

Wouldnt "signal voltage too high" also mean the car is running too rich beyond the point the DME can compensate?