2005 LLY Limp mode, tractor sound
 

PO201, PO202, PO203, PO204, PO205, PO206, PO207, PO208, P1246, P1249, P1293

My check engine light came on while driving, a couple of seconds later the engine died. It restarted, then made a terrible sound that some say is similar to a diesel tractor. Several months ago this truck went into limp mode for the first time ever. The problem turned out to be bad electrical connectors at the injectors #7 and I think #2. I got the connector repair kits, installed them, cleared the codes and it ran perfect. Any thoughts from the LLY experts?