I have a problem with my bmw S1000xr, the motor turns too lean lambda 1.215.
the scope image shows the two screens of the two lamba signals but there is a difference between the two sensors
You would upload the PSdata file just as you have the Capture above, maybe the file size is over 20mb, i think that is the limit per file - can someone confirm?
Once you hit the "Add The File" button you may need to wait for it to load, can take a minute sometimes. There is a bug that, once the file has loaded, will show a "PHP ERROR" You will need to scroll up to the top of the screen to see that. If you do get the error then just hit "Preview" and that should sort it out for you.
Motorbikes are not my thing so guide me here. The 02 sensors you have scoped I guess are both Pre Cat sensors ?
Is this engine a "V" Configaration (im guessing 4 cylinders) ??
At first glance both 2 sensors look to be reacting well, both bouncing around between 100 & 900 mV and not indicative of a High or Low Lambda - However we do not know what your STFT & LTFT Readings are.
They Red & Blue traces look different because you have Channel A & B on different Voltage Scales,
Set them both to +-5v and take the captures again from Engine Start > Idle > 2500rpm > Wide Open Throttle > Back to steady Idle If you have 4 channels then add MAP or MAF.
Any Fault codes ? Live data for Tempratures, Pressures, STFT, LTFT, Injector Durations, MAF ?
Those temperature readings from the oxygen sensors seems very low - they should be above 300 degrees celsius before the sensors works effectively.
Try hold a steady rpm at 2200 rpm for a minute or two to warm up the sensors properly. If the oxygen sensors does not reach any higher temperautre than you have stated - then I think you have a issue with the internal heating of the sensors.
The other possible cause to a lean lambda reading is a air leak somewhere in the intake system or exhaust system or mechanical defect.
The temperature reading are done with a motor temperature of 100°C, I think that its because i use a infrared temp metre
The bike is a new bike 4000km so i think that only software can be the problem
My bike will go to the dealer of bmw Belgium i am only curious for myself
Hi STC
i know that the lambda is just calculation but it is something to take care of it
i can not do a individual gas reading because the bike is under warranty.
correct the lambda is just a calculation, but it gives me something to take worry about it, my bike is a new one and I can not take a individual gas reading or a need to make wholes in the exhaust
the reading of the temperature are done with a infrared temperature metre. The motor turns 20min and have reached Water temperature of 102°C
Hello to KimAnderson
My bike is a new one for me i think that the problem can be a problem of software or a bad Kenfield.