RomRaider

Hi! I am planning to purchase a cheaper AFR controller kit, what only has a linear output of 0-5V. I have read in several places, that I could connect it into the ports of a Downstream lambda probe on the ECU connector, and I can log the 0-5V values with RR Logger.

Before purchase, I tried to test if I can log anything from downstream lambda pins: I have a bench setup, I inserted wires into ECU connector pins 71,72 (downstream O2 sensor signal ground) and pins 77,78 (downstream O2 sensor signal), and I put adjustable 0-5V voltage between the two connected together grounds and one of the signal pin. Here comes the problem, I had no success in logging.

In this thread: viewtopic.php?f=42&t=13055
tjabo successfully logged the values of STATUS_VLS_DOWN_1_BAS*, but if I check that parameter, my readings in rr logger freezes, the status in the top right starts to alternate between "Reading data" and "Connecting", and in the bottom left corner it writes "Error: Invalid ecu id. Expected 12. Actual: 00." with red, in every five seconds or so.
tjabo had an ID60 ECU, mine is MS41.0 ID41 1429861

Can I anyhow log the downstream lambdas, if I put 0-5V onto the ECU pins, with my MS41.0 ID41 1429861? What sould I modify?

http://www.romraider.com/RomRaider/HowToDebug
Clear the log, start RR Logger and select only the parameter that gives you a problem and then post the log here.

Hi dschultz!

I attach my rr_system.log
In the file at:
- 10160 I checked parameter [E101] STATUS_LS_VKAT_SIGNAL_1* - It works as it should, I just provided a good working example also
- 15127 Unchecked [E101] STATUS_LS_VKAT_SIGNAL_1*
- 17859 Checked [E125] STATUS_VLS_DOWN_1_BAS* <- THIS causes my problem, this freezes my logger
- 28540 Unchecked [E125] STATUS_VLS_DOWN_1_BAS* - After few second, RR Logger starts to work again.

I hope it helps!

-861 doesn't have downstream lambdasensors, neither required circuitry to read 0-5v voltages at the inputs. That's why you are getting the error when trying to log those.

I thought that might be the case. I'll remove those for this ID in a future Logger def update.

Those shouldn't be there in first place. The -861 was fixed for some logger definition version without those after I posted the fixes to this thread, but are those added later there?

Also -401 and -373 don't have the downstream lambda sensors bit I don't remember if those are even in the official logger definition.

EDIT! No wait. It was the downstream lambda heaters. E125-STATUS_VLS_DOWN_1_BAS and E126-STATUS_VLS_DOWN_2_BAS need to have 1429373,1429861 and 1432401 removed from the ecu id-line.¨

I haven't had need to use those item's so I haven't noticed the problem before.

pazi88 and dschultz, thank you for your help!

So my ECU is not capable to read the downstream lambdas, even if it has the pins, but these pins are not connected to anything in the ECU. It means upgrading to MS41.2 would not help either. So, for me, the only way to log 0-5V AFR values is to use a separate device what converts the voltage values into serial port messages.

Thank you again!

Yes that is right. Or you could get ms41.1/2 from ebay to replace your ms41.0.

To log generic sensors you can use a Phidget: viewtopic.php?t=8534

Deleted post...figured out my issue

Could you possibly have the flasher open at the same time? Did you select DS2 protocol?

Guys, I have problem with Logger working on ms41.0 (1429861 and 1429373)
I can't read and erase DTCs in RR Logger. It comes up with error like below.

Also Reset Engine Control Module - Adaptations doesn't work at all. After procedure (looks quite correct, without errors) values are still the same like before.
Except that, live data on tables are working well. I have logger def file v346.

What can be reason?

DTC clearing doesn't work in RR logger for BMW ecu's. But you can use new quickflash for it. The adaptation clesring should work with RRlogger.

Have you any idea why I can't clear adaptation? Read/Write flash memory is working without any problems, reading data on adaptation tables also, therefore I think my cable branch is ok.

not all software version of ECU are clearable. My stock ms41.1 isn't. Now that I put ms41.2 from the stock rom thread then its recognized properly and you can clear them. Their definition file ecu can not cover all ecus on the market, as some are slightly different. IF you put a known rom on it, it should clear, at least from my small experience