Winther92 JHM Hi again, now I have adjusted the fuel both at idle and with load. But when it is cold and idling it shows lamda fail after a few minutes
JHM Winther92 Error is detected if either: lambda correction is out of range (that's why you have to adjust the fuel corrections properly) lambda probe signal did not appear in a predefined time window (the sensor heater is malfunctioning)
Winther92 Okay, good to know. But it's while it's at high idle when it's cold that it runs outside the window? When I reset it there are there no problems once it has dropped to normal idle.
JHM Winther92 Lambda starts working from coolant temperature 40 degrees. Record a log of a cold start until it fails.
Winther92 JHM jetronic-a7e0-20250527-141308-v412.imf10kB log-jetronic-a7e0-v412-20250527-135617.csv410kB Hi here is a log until fail
Winther92 JHM What do you think is the best solution to this? The lambda sensor is only six months old and hasn't been driven much, could it be the power supply there? Or do you think it's broken?
Winther92 JHM Okay thanks, I just ordered a Bosch 0258986507 as you recommend in the manual which I hope will work better.
Winther92 JHM Hi, I replaced the lambda sensor and it helped with the problem. But my idle is a bit unstable, what could be causing this?
JHM This is not critical. I've been addressing this issue in v4.1.5, but it currently has some bugs, so you'll have to wait for a while.
