Hi guys. Running an old silver xtreme with 4.10.2 and can't get the throttle to work properly. It's giving me a error 4 max dc 80%. I tried shutting off the e-throttle and cycling the throttle flap. Noticed that the sub isn't changing voltage. Also tried switching the sub and main. As well as tying both sub and main to one wire to see if that would fix. No luck. Any suggestions? Also pid suggestions would be great. Thanks for any help on this. I'm beginning to think I need a new throttle body. Cheers Scott