Revo1

Ok so I've got the same code on my d15b7 it's all factory in a 92 civic Sadan. The car seemed to drive just fine until I hit the interstate and cruise in 5th gear and it would randomly just loose power but when I turn the car off and back on while rolling it comes straight back to normal. Decided to pull the injectors and one of them had a plastic tip missing so I replaced the injectors. Now when I start the car it idled rough and feels out of balance when I rev it up and it will also backfire through to intake. I've replaced fuel pump, fuel filter, plugs, wires, distributor, starter, ignition, tps, 02 sensor, ecu, main relay and it still won't run right. Backfiring from the intake and all. Also the car is in perfect time. I'm at a loss and any help would be greatly appreciated.