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hi i need help regarding acura tsx with k20z2 engine i dont know where to start and what to do and how to set vtec and what i should do with ignition
I'd suggest that you take the Practical Reflash Tuning course and watch the Hondata K20 worked example. The software looks different to what you're using but the tuning process is the same.
You can find the worked example here: https://www.hpacademy.com/dashboard/courses/practical-reflash-tuning/hondata-honda-dc5-introduction-introduction-to-hondata