i am runing a code 43 before this it was a code 7 but the code 7 went away and code 43 came up

could this be a fuel injectors is bad or could be that i am running to much fuel press to the motor????
i also have a feilds vafc my car is obd0 i am almost ready to go obd1

also my car has a leak and it already shorted out one of my ecu i am tring to get the window reseald like this week

thanks for any help