the jdm cluster is completly different in terms of the usdm cluster, i dont really know what you need to do to make it work. The only thing i can recomend you is to see how far your off percentage wise, go to freshalloy.com, in the best of 240sx section theres a thread by a guy named knate, and you should be able to fix it by the way he has it listed on the thread. Good luck!!
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