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Apexi power FC MAF L- jetro VERSION! how to fine tune with only inj map!

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Hey gents i know the ecu is old now but as what we are all here is to learn! my issue and trying to understand is how do i go bouts adjusting my fine tuning on my inj map as i only have one fuel map to use which is only AFR targets (i think) ecu is being used on subaru wrx gc8 version 6

i have manged to match my afr mixtures to same readings as my innovate lm2 wideband and my injectors are set correclty ( i hope lol) as my afr is correctly reading from adjusting my ground offsets !so im assuming injector info is set correctly!

i know some version fc edit have both inj tab and base fuel tab to match mixtures according! but in my case only one map which is inj map

my question is do i adjust my maf voltage curve to suit my afr target maps to match according! or is there anther method ive missed to fine tune my fuel etc! as i did try adjusting my afr/corrections on inj tab but nothing changes! My theroy is adjusting my inj map to random afr to match targets i dont think that be correct way ! as it be all over the place!

anyone have good experince to try easily help explain on how to fine tune this apexi power fc MAF system (wrx gc8 version 6)

thanks!

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