Hi. Ron here. I am a new member, but I have been looking around here for a while. Not quite sure how to ask for help, so I will just post some information and hope someone can guide me.
I have a 2006 E350 that had some problems with ECU and firing coil packs. Sent to "your part source" to repair. Got it back and it ran good for a few months, then started having more issues. Thought it was ECU problems again so I sent it back to have it checked out and they say it checked good.
I get different codes each time I start the engine after clearing the codes. One time I will get P0302 alone and sometimes with P0352. Clear codes and it might come back with P0010, P0013, P0020 & P0023. Clear codes and it might come back with P0562. next might be P0563. The only time it really runs much at all is with the P0302 where it will idle rough but won't rev up above about 1500 rpm.
I have checked ground connections and tried checking wiring, but even with wiring diagrams it is tough to do.
After I got the ECU repaired the first time, I replaced all the Coil packs and spark plugs. Before it was repaired I had replaced all 4 camshaft solenoids.
I can not imagine all 4 solenoids failing at once and can't figure out why different codes would show up.
I still believe it might be the ECU, but would appreciate any help anyone could offer.

Thanks in advance,
Ron

 

Maybe there's something wrong with the internal parts of the engine?

 

wellcome