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percentage of acceptable error compared to the target afr

Practical Standalone Tuning

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Hi, during the adjustment of the VE table, what is the quantity in percentage of acceptable error compared to the target afr and the real afr?

for example an error (lambda target vs lambda reel) is such acceptable below 5%?

I also noticed that this error was increasing compared to whether the car was tuned day or night.

Hello, 5 percent is ok for sure and if it is different then I would be looking at the charge temperature correction table to see what the difference is between the day and night tune. try this table to correct the afr for different temperatures

Regards Ross

ok, i would look at this to refine my tuning

Thank you for your reply ;)

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