Discussion and questions related to the course Reflashing
How do you setup your histogram to show your error percentage? also what pids are you using?
You need to be logging the commanded equivalence ratio and measured lambda and then you can use the predefined equivalence ratio error math channel. It's explained ion this webinar, specifically around the 23:00 minute mark https://www.hpacademy.com/previous-webinars/204-hp-tuners-maf-re-scaling-made-easy/
Also check that you're logging commanded/measured AFR OR commanded/measured EQ ratio (Keep the units of measure the same)
If you log commanded EQ then log your wideband readings as AFR or vise versa, your histogram won't work.