07-24-2023, 07:44 AM | #1 |
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BMW F25 N55 lambda value - Running rich
Hi all
I have an X3 F25, 2011 with N55 engine. I am running rich with LTFT value at -4,69% On top of that I have rough idle and engine code 101F01 I checked O2 sensor with ISTA D and I am finding some values but I am confused. When I accelerate, O2 before Catalyst goes in the red sometimes. Is it normal? Can someone check my video or check his own normal N55 O2 sensor values in ISTA-D and post it so I can compare and determine if my O2 sensor is bad? Check the video attached link, thanks https://youtube.com/shorts/sfrpSrkZD9g?feature=share |
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