Help!. Brought a 1989 toyota hilux with lexux 1uz engine transplant from bb groomers dealership in blenhaim approx 10th july 201

wel it seemed sweet at the start but then it just started going down hill after a month or so im not an expert and im not trying to be i dont know why u are talkin to me like im a retard thanks tho real kind of u make u feel better about yourself! i have no idea whats going on with it im only going off what i have been told.