1. AK135i

    Jb4 32_6 firmware update meth problems

    Since I've downloaded the latest firmeware my meth flow has been acting up. At first it was slow to reach 100% which it always hits, now today it was hitting at best 50%, i did three short pulls not even revving it out, around 4000-5000 rpm. Then the car seemed to shudder at light loads in 5th...
  2. AK135i

    jb4 2step doesnt hold set rpm

    First post, and a noob here, so I apologize in advance if this has already been discussed I searched and couldn't find any threads that covered this problem with a solution. So the issue is ever since ive installed the 2step relay with jb4 (with current firmware) the car will randomly 2step past...