Engine Sensors

[Gelbster]

"How do you know you connected the correct coil terminals to each coil? Did you mark them? Check that first before moving on to other issues."
It is very easy to muddle the connections.They conductors will reach several coils -some right ,some wrong as you may be discovering?

[mnc-i]

Gelbster

I am quite sure that I did not miss connect the coils.
I followed the same method/system I've always followed when changing spark plugs...change one at a time before going to the next plug & coil.
I had the issue of a severe rough idle, backfires and engine dying out on me prior to me changing the plugs & coils.
Codes P0154 & P0134 are pending codes and somehow are linked to the Pre-Cat 02 sensors.
Code P0410 is for secondary air injection.
Code 1124 is for fuel pump rely output stage
Code 1126 is for Oxygen sensing adaptation, lower load range cyl 1-3
Code P1411 is for secondary air injection system, cyl 4-6
Code 0455 is for fuel tank ventilation system major leak

MNC-I