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good morning my name is ***** ***** I will assist
lets start with the codes???
does the check engine light work with key on???
any recent work done???
ok, thanks. the first thing I would do is check the wiring harness very carefully for any areas that are damaged. check all grounds as well. look at fuse boxes and check fuses with test light for power.
it would be odd for all these issues to happen at the same time.
lets start with checking the harness
look at all the harness, not just the connectors, if the heads were removed, the harness were moved and you need to check and see if they are laying on the head or areas of heat that may have damaged to wiring. there are many harness around the motor. check each one carefully for any damage
yhe FICM is a common failure for this model.
do you have a scan tool to monitor data??? I would like to see if the high pressure oil pump is priming the system.
When you are trying to start it, have you noticed if the oil pressure takes longer than usual to come up on the gage?