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The Altezza / IS200 / IS300 Forum
afc question
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<blockquote data-quote="ftzone" data-source="post: 3932578" data-attributes="member: 9659"><p>Do not use the APEXi Pen Timer AFR as it is in narrowband o2 readings.. it is not accurate for reading lean/rich conditions... it only reads 14.7 correctly. Your car would be happy @ 14.7 during cruise and light load speeds.. but at full throttle you car needs about 12-13.5AFR..</p><p>Please use wideband O2 sensor (sumthing like INNOVATE LC-1 or LM-1) to make sure you are not running lean nor too rich... but if your modification is not extreme it is ok to leave the SAFC settings at 0% correction. A simple rule is that if the car runs right most likely your AFR is ok too.</p></blockquote><p></p>
[QUOTE="ftzone, post: 3932578, member: 9659"] Do not use the APEXi Pen Timer AFR as it is in narrowband o2 readings.. it is not accurate for reading lean/rich conditions... it only reads 14.7 correctly. Your car would be happy @ 14.7 during cruise and light load speeds.. but at full throttle you car needs about 12-13.5AFR.. Please use wideband O2 sensor (sumthing like INNOVATE LC-1 or LM-1) to make sure you are not running lean nor too rich... but if your modification is not extreme it is ok to leave the SAFC settings at 0% correction. A simple rule is that if the car runs right most likely your AFR is ok too. [/QUOTE]
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