t4 problems over fueling to the max.??

[DVR68U]

hey guys my 2l t4 was running not extremely well tho lol problems on cold start the 2 pin i think. but i drove home the other day and it conked out when warm which it hasnt done before. any way ive done a compression test ~170psi on all 4 but really rich. plugs where still wet and covered in black from me tow starting it after it stopped lol. the van would run at full throttle and nowhere else blow lots of fuely smoke. ive change out the fuel pressuer reg. ( wasnt a easy job lol ) cleaned the ecu vac line and put in a oneway valve. cleaned the plugs, changed the coilpack for my test one, tried a different 2 pin sensor. what else is there to check besides the ecu. ?? anybody had this sort of problem before.
cheers brenton