It sounds like you have some wires crossed or a few Broken wires... is that even possible? Im not sure. You may want to take it in to the dealership and have them hood up the scan tool.shipmanlights said:I rebuilt my brothers 4.7. It seems to idle fine then stalls after a while. If you drive it it bogs at an idle or stall. Cruising it seems fine. it does ping on excelleration. I have 7 coil errors. what is causing this??? I am at my witts end.