fuel running into motor on 1995 Mazda B2300

have changed the fuel pump, put new o rings in the injectors, checked vacumn lines and the fuel keeps running into the motor.

Asked by for the 1995 Mazda B2300
one is fuel going into oil pan ? if so one is fuelpump psi good 2. is fuel pump reg in tank ok are the fuel injectors staying open after the car is off you only have 5 mins after fuel test is preformed then after 5 if it goes down ok not befor and there is a recall for reprog of cump ?