I have a 2003s with a 14% SC pulley and a 5% crank, 380 cc injectors, JCW software, VG system and Alta intercooler and cold air intake. From day one I've experienced different levels of the yo-yo. I'm now convinced that it is software or an ECU issue. I need to find someone within 500 miles of me here in Albuquerque that is a top notch tuner that might help me put this thing to rest. I have spent hours within the yo-yo chronicles and not found anything that I'm capable of using.

Any thoughts or observations would be appreciated.

Thanks

Bob
synergy1