A/F is different from AF/CMD

Civic 2016+ 1.5 Turbo
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Civicx990
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Joined: Thu Jul 16, 2020 8:50 am

A/F is different from AF/CMD

Post by Civicx990 »

Hi,

Need some advise if possible, How come during WOT, my AF CMD is 11.08 but the sensor is A/F of 10.52?

Is it the stock 02 sensor not accurate as its not wideband? Or need adjust some settings? Here a screenshot. Any expert opinion would be useful. Thank you
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Hondata
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Re: A/F is different from AF/CMD

Post by Hondata »

Because the ECU is in open loop, so it will not adjust the AF to match the target. And also the WOT adjustment table is not a target table.

You'll find that after a reflash it will take some driving but eventually will run in closed loop all the time apart from when the injectors are cut.

If you see a difference from target to actual the first thing to look at is the AFM calibration.
Hondata
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