jonfarrell
New member
Hello folks, when I use OBDII (ISO 9141) to stream data i get completely different short term fuel trim numbers versus when I go into ,the Toyota based scan tool on my iCarsoft CRPlus. Should I trust the Toyota based scan or the OBDII? very confusing indeed lol See the pictures for demonstration of the conflict. First pic is Toyota based scan, second and third pics are OBDII ...see the 99.2% short term fuel trim?
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