Has anyone switched the injector control wires after the FICM (not at the main engine bales as there's another thread describing) for alternative firing order cam?
Injector side, if it worked on the engine side between the bale connector and FICM then you could switch at the bale connector but you can't on the LB7/LLY. It will give you engine misfire and FICM codes, trust me I tried it.