In a closed Loop operation with Flashpro at any given time ECU is getting feedback from Oxygen Sensor to adjust the A/F ratio for smother and cleaner ride, however S.Trim is trying to modify the fuel delivery to maintain near perfect A/F ratio too. The fact that these 2 functions are competing to resolve the A/F ratio problems, can we say they are interfering with each other?
I datalogged a portion of my ride when S.Trim was maxed to -31% in order to adjust the A/F ratio. Meanwhile I received check engine on P0172 for "Fuel System Too Rich".
Any thoughts?
S.Trim vs O2 Sensor
Re: S.Trim vs O2 Sensor
No, you have either a problem with an injector or the o2 sensor is not working or your AFM is not calibrated or your fuel tables are far too rich.
Hondata
Re: S.Trim vs O2 Sensor
I think the fuel table could be off as I run MAP fuel table, "speed density". However below is a snapshot of my ignition low and high table.
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