Are CM codes that refuse to erase affecting the drivability of my truck?

111

10

327

337

and back again for another round ...

334.

 

1) Disconnect negative battery cable for 20 minutes, codes came back.

2) Follow instructions from my code reader manual, codes came back.

3) Disconnect negative then positive cable for 20 minutes, turn key on while disconnected and touch cable ends together before reconnecting to discharge the capacitors holding any possible charge in electrical system. Turn key off reconnect battery cables. This was suggest to me by ymeski56, codes came back.