I would still like someone to answer my original question about tanking it to the dealer or what to do if you can't fix it.
This may not be the right spot for this but I just called and got a list of what to tell you guys. First on the specialist, he is called in by many of the dealerships when they have electoral issues that they can't fix or don't want to. He doesn't have much confidence in them fixing it.
The van had no power when we got it. It HAS power now and I am told this is a different problem. Was told problem was with cam in old engine.
Spark intensity test on secondary ignition with no break up.
Primary ignition - no break up
Random cylinder misfire occasionally, 80% of the time on #4 vs. other cylinders. This happens at idle.
Cylinder compression on new and old engine 160 to 170.
Valve cover removed, Rocker arms appear to be traveling correctly.
Fuel pressure consistent @ 45
O2 sensor cross count operating correctly during engine miss.
Very intermittent cam shaft position sensor code PO340. Some days we don't get it at all.
Can run 3 KOER test with no codes
When #4 is missing #4 and 5 can be disconnected and #4 put on #5 with no miss.
#4 has new injector
New Coil
#4 secondary ignition cable tested for leakage from boot to other end.
Many plugs tried
Oscilloscope amplitude, frequency range perfect and wave pattern perfect with remaining injectors.
12 ohms resistance on injector