the problem with AFR

[Nxnos]

Hi all. Mazda cx-7 1st Gen. Sometimes the testimony of Actual equivalence air to fuel ratio (λ) grow up to 1,992. What could be the problem? Lambda was replaced by a new one, but the problem remained.
Thank you all, I attach the Log

[Steve @ VersaTune]

The ECU cuts fuel on deceleration for fuel savings and reduced emissions. When that happens, the O2 sensor sees lots of oxygen. This is normal.

[Nxnos]

Thank you very much. Maybe even tell me when I stopped, keep your foot on the brake, but there was a sharp jerk of the car. What could be the problem?

[mituc]

Is it just me or the above posted log is absolutely and totally fucked up? Can you try to re-post is, please?

[Steve @ VersaTune]

I think it has to do with the decimal and thousands separators used. After a bit of tweaking, I got the log to work in Libre Office Calc.