Hi, as I have checked with our engineers, there is misfire data stream on Maxisys Pro. There will be trouble codes when misfiring and the description is Cylinder X Misfire. You can enter frozen frame to see the detailed misfire information with the trouble codes. If there is still problem, can you please upload a data log for our engineers to check further ? They will try to add this function or better the feature ASAP. Thanks for your information and help !