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the problem with AFR
Posted: December 10th, 2016, 11:58 am
by 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
Re: the problem with AFR
Posted: December 10th, 2016, 2:15 pm
by 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.
Re: the problem with AFR
Posted: December 12th, 2016, 12:04 pm
by 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?
Re: the problem with AFR
Posted: December 12th, 2016, 2:48 pm
by mituc
Is it just me or the above posted log is absolutely and totally fucked up? Can you try to re-post is, please?
Re: the problem with AFR
Posted: December 12th, 2016, 5:01 pm
by 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.