2000 Chevy Suburban PO200

Computer problem
2000 Chevy Suburban V8 Two Wheel Drive Automatic

we keep getting this code all of the injectors on the driver side of the engine are not working properly our customer has been dealing with chevy and they have put 3 computers in this vehicle the truck will run fine then all of a sudden it just `starts running bad check engine light will start flashing he is very frustrated with the chevy house and brought it to us to see if we can resolve his problem like I said the code is po200 and it is getting good fire but I am assuming not the right amount of fuel any help on this matter would be greatly appreciated