Readiness - Catalyst

[Geoff]

I will do that this evening. I have no error codes
Shadow code lpfp

Should ik make a log on low rpm??

 

[Geoff]

datazap.me | Geoffrey | Log 1664181358

datazap.me

 

[Geoff]

What you have there isn't the same that others are suffering so the fixes that are incorporated into MHD aren't going to solve that.

It still looks like Lambda stimulation though so probably also caused by a diagnostic routine. Do you have any error codes?

If you unzip the file I've attached and drop it in the MHD root folder and go into the MHD logging settings you should now be able to log 3 extra channels. Bank 1 AFR Target, Bank 2 AFR Target and Bank 1 Stimulation. Tick these and also add the Fuel Mode parameter. Your next log should then give some additional detail. This will tell you exactly what AFR the DME is targeting and also the value of the diagnostic routines stimulation.

datazap.me | Geoffrey | Log 1664181540

datazap.me

 

[Geoff]

datazap.me | Geoffrey | Log 1664181540

datazap.me

I posted 2 logs a long and short one. In the short one it happened.

 

[carabuser]

I posted 2 logs a long and short one. In the short one it happened.

Ok that's a routine that adds a loading onto the fuel trims to cause the change in lambda. You can see the dme target doesn't change at all.

I'll get some more parameters for you to try on the weekend when I'm home.

 

[Geoff]

Ok that's a routine that adds a loading onto the fuel trims to cause the change in lambda. You can see the dme target doesn't change at all.

I'll get some more parameters for you to try on the weekend when I'm home.

Thanks!! For the help.

 

[Geoff]

Thanks!! For the help.

Today I reset adaptations values with Inpa.

Re-adaptation of the engine using INPA - Bimmerprofs.com | NOx emulator NOXEM 129 | 130 | 402 developed for BMW N43 & N53 series engines

Note: INPA loader 2.023 required. Switch on the ignition (engine off), connect OBD to USB connecting cable, select MSD80 for N43/N53. 1. open INPA adaptation menu, 2nd group: ../F8/F2; delete existing/old adaptations (status: ignition on; engine off), pressing Shift+F9 2. Open rough run menu...

bimmerprofs.com

These were my values after a couple of drive cycles

 

[carabuser]

Thanks!! For the help.

Add these 2 extra channels. These are the status flags for lean and rich trim stimulation.

 

[Geoff]

Add these 2 extra channels. These are the status flags for lean and rich trim stimulation.

What are they called in MHD

Add these 2 extra channels. These are the status flags for lean and rich trim stimulation.

under what name can I find them in options mhd

 

[carabuser]

What are they called in MHD

under what name can I find them in options mhd

Forgotten already. Something like bank 1 stft rich and lean.

 

[Geoff]

Forgotten already. Something like bank 1 stft rich and lean.

I have them. Because I reset intake mass flow it’s oké for now. Wait until it’s back or just make a log? And in low rpm again?

Forgotten already. Something like bank 1 stft rich and lean.

 

[carabuser]

I have them. Because I reset intake mass flow it’s oké for now. Wait until it’s back or just make a log? And in low rpm again?

Doesn't matter too much. Just do a normal drive and log the whole thing, your commute would be fine.

 

[Geoff]

Doesn't matter too much. Just do a normal drive and log the whole thing, your commute would be fine.

Oké will do tomorrow

 

[Geoff]

Oké will do tomorrow

Do you need the log. Or do you want to know what happens with bank1 to rich to lean.
Because they stay the whole time at 0

 

[carabuser]

Do you need the log. Or do you want to know what happens with bank1 to rich to lean.
Because they stay the whole time at 0

Log would be useful. If those flags show nothing then maybe the issue isn't with the DME but with the sensor signal coming from the O2 sensors.

 

[Geoff]

Log would be useful. If those flags show nothing then maybe the issue isn't with the DME but with the sensor signal coming from the O2 sensors.

datazap.me | Geoffrey | Log 1664987605

datazap.me

 

[carabuser]

datazap.me | Geoffrey | Log 1664987605

datazap.me

I'm not seeing the same issue in that log. The AFR looks a little unsteady after the pull but not the same issue as you had earlier.

You'd need a log showing the swaying AFR readings sway in steady driving state.

 

[Geoff]

I'm not seeing the same issue in that log. The AFR looks a little unsteady after the pull but not the same issue as you had earlier.

You'd need a log showing the swaying AFR readings sway in steady driving state.

Then I have to wait till it comes back and then make a log. Unfortunately it will.

 

[Geoff]

Then I have to wait till it comes back and then make a log. Unfortunately it will.

By idling the o2 sensor

Then I have to wait till it comes back and then make a log. Unfortunately it will.

today my mechanic read the voltage values of the 02 sensor. After the cat the o2 sensors don’t give the same value. One stay’s 0.8 by idling and the other one fluctuates

 

[Geoff]

I'm not seeing the same issue in that log. The AFR looks a little unsteady after the pull but not the same issue as you had earlier.

You'd need a log showing the swaying AFR readings sway in steady driving state.

datazap.me | Geoffrey | Log 1665299451

datazap.me