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I've been having issues with my motor randomly firing on cylinders 1,3,5 until or if it reaching 3000 rpm the all cylinders fire steady. I bought a yds program and noticed the program said the ecu number was a 60x8591A10. This is for a 2005 vz250TLRD. Mine should be 60X8591A01. Is this an issue. I bought it in 2009 and it ran fine until 2013. Then this problem started. Any help please.