Hey all me and my dad are working on his 06 ram with the 5.7 hemi. He recently got DTCS regarding his secondary circuits on Cylinders A and C. We replaced the coil packs on Cylinders 1 and 3 assuming that 1=A and 3=C. We are still pulling the same codes and are wondering if 1 does in fact equal A and 3 is C. Also if anyone else has ran intothis issue and has any insight and tips please feel free to chime in.

 

same thing happened here...i replaced coils because i had a misfire in all four cylinders... after that had misfire in first and second cylinder...got new plugs had them replaced and gapped to .028 and it runs fine, no cel or anything..

 

could not have said it better my self