sir, in our workshop we are changing a clutchdisk for a nissan navara-diesel pickup(electronic pump).after changing the disc on the roadtest engine rpm not exeeding from 1500, but in the engine newtral position engine rpm is 3200, we are disconected all sensers from the gearbox for changing cluctchdisc.what is the reason for it.how can recover from it?. read full review »