I have a 93 del sol and I put a d16z6 in it, everything has been running just fine for about two years. Now all the sudden it keeps flooding ? Does anyone know Why ?

Check for any codes.

I have code 43 and code 6 but I think they are unrelated. I pulled the fuel rail off to check to see if any of the injectors were leaking. I held them in place after unplugging the distributor as my dad turned the key and at 40psi there was no leaking but shouldn't there have been gas spraying out of the injectors ?

I put an electrical tester in the plugs to see if the injectors were getting electricity an they were. Should my fuel pump be putting out more than 40psi ? Should my injectors be getting more than 12volts at prime for two seconds and 9volts for when the car is trying to start?

All of that seems fine, to me.

A Code 43 can also be a problem in the Heated Oxygen Sensor circuit. Remember, oxygen sensors control the duration that gas is injected in each cylinder.