2001 JETTA 1.8T BIGGG PROBLEMS

ok i have a 1.8t jetta automatic got a good deal on but its having tons of problems it has 109,000 miles on it .. the problem im having is it will one minute be driving fine then all of a sudden throw the epc light and the antiskid light on all at same time loose power then i can pull over turn the car off for 30 seconds turn it back on and it will run fine some time the traction control light will stay on sometimes it wont... another problem im having with it is i can go out to start it first thing sometimes it will idle fine with no problems then sometimes u start it and the idle will run reallly ruff and idle will bounce like a vacum leak but there isnt a vac leak to be found it will also do that idle jump after u have been driving it around and it running smooth sometimes u can turn the car off while it has ran fine start it back up within the same minute and then it will start idle jumping i have had the computer erased of codes when it acts like its missfiring and idle jumping if you bump the gas barely and take it up to 1400 rpms its clear and clean and even drives clean but when u stop to idle its ruff and choppy idleing it wont throw a check engine code when it does this either thats why im so lost on what it could bee i have herd it could be the ecu but realy dont know anyone with one to trade and try with also while the car is ideling and running ruff we have cleared the computer wehile it was running and it would clear all codes and all and idle perfect for about 3 seconds after clearing codes and then go back to running ruff
things i have did to the car so far was one replaced water pump the plastic part of the pump split and it wouldnt pump water second thermostat and fans mass air flow sensor has been replaced becuase it was bad and would barely run if it would before doing so
im open to any suggestions im just getting tired of messing with the car getting to be old working on it none stop and it never runs correct it has all the power it should and car flyssss even when it idles funny u can get out on a long straight rd and ease threw the throttle and it will hit 120 very quickly and sometimes after u do drive and hit 70 mph and stop the car will run clear and not idle funny it will run clear
please any sugestions im about to get a bottle brush and clean every vacum line there is on there and pull the throttle body and clean it
thanks for reading i kno its alot just very lost on what else it could be