Good time, everyone.
Very much need help, there is a car Outlander Sport 2010 for California, it has a standard wideband oxygen sensor model .NTK UAA0004-MM002. In the program Mitsubishi MUT3 SE it is called LAFS, and displays volts. According to the marking in the program Mitsubishi MUT3 SE it has number E1. But I can not get data from it in mode 23. Maybe someone knows, someone has encountered how to get data from it in mode 23 in Evoscan programm? I have tried different queries from the MUT table, but I can not get the volts data, the query MUT13- shows zero, while STFT(MUT0F) and LTFT(MUT50) work. All standard queries, RPM, MAF, etc. also work. But the oxygen sensor voltage cant find(. Please help me to solve it.

Mut table from my firmware:

 

It's the only description I could find:

 

Doesn't anyone know? Any suggestions?

 

Hi all.
I tried to use the M.U.T.-3_SE program to record the readings of the oxygen sensor and it turned out that the ECU can independently calculate the AFR. I took these points and wrote down a large log file. The ECU calculate AFR, but only up to certain limits. The ECU does not calculate AFR richer than 13.12(lambda 0.893). And it is clear that the voltage and lambda readings are not linear.
Maybe someone knows why it is like this? I tried to derive a formula to calculate the AFR from the oxygen sensor voltage, but as you can see in the graph, it is not linear.

 

If you average all the recorded data, it looks like this:

 

Does no one know how to use this sensor to calibrate fuel? Can someone tell me the formula?
The only linear formula that I found is vuot*2+10= afr, but it does not coincide with what the ECU itself calculates.
It looks like this (Red):

 

It’s a shame that no one knows what to do with this oxygen sensor, but I found some information. It turns out that there is a microcircuit inside the ECU, it is called ASIC. Manufactured by NTK. I couldn’t find a datasheet for it, maybe someone has one? Here's more about how it works:
Wide Range Oxygen Sensor - Sensors | Niterra Co., Ltd. (ngkntk.co.jp)
The microcircuit itself is marked NTKIFB31-211Z04, I have attached a photo.
It turns out that he independently calculates the AFR and transmits this data to the ECU. I found a 0-5 volt output on the microcircuit, and I’m thinking of making a jumper to the ECU input to record this data in mode 23 via evoscan, but I don’t know which ECU inputs this jumper can be made on. Can someone tell me if the free inputs to the ECU are 0-5 volts? The unit is very similar to EVO 10, maybe instead of a fuel temperature sensor? Or maybe there are some other ADC inputs?

 

Hi Axiscom,

My Lancer 2014 also has a LAF sensor, I have tried to log it via mode23 without success, Im currently disassembling the ROM checking some RAM addresses that I found using the DTC manuals (P0132,P0133) I will update if I found something. Maybe @jajk can help us?

Also, for the jumper, have you tried pin 38? for our ECUs I dont think its used anymore...

Im interesed on helping where I can. Why dont you move this to ECUFlash section?

 

Hi!
I still couldn't find the address of the request in mode 23.
If you have any information, please share it. I don't know who the @jajk is. But if you can ask him to help, that would be cool. There are many such machines, this is useful information.

 

Good time of day. Have you been unable to receive data in the 23 mode? I've made a lot of progress in the calculations, but the data via CAN is very slow. It's sad that no one can help, it's very sad.... I've already gone through the entire table again, but I still haven't found the data in volts.