What does P061B mean?

All I can see about that code is that it indicates that a calculation error occurred in the power-train control module. And to look up P2016 for causes. I am doing that now.

Aids Check for sensor and circuit related DTCs. Do not install a new electronic throttle body (ETB) for this DTC. Straight out of the ford manual

When I look up p2106, it is indicating that the system has detected some sort of fault in the throttle Actuator System (the throttle body area). It is not specific as to what the fault might be. It goes on to say that there probably is other codes that will point you in the right direction.

So, take it to AutoZone, Advance Auto, Oreilly Auto Parts, or wherever you got it scanned before, and get it scanned again. Be sure to either write down everything that it says or get a complete printout. Come back with whatever that says and we will go from there on troubleshooting.

If you want to check some things before going to get it scanned, you can raise the hood and look observe the throttle body (should be at the end of the air duct that is on the engine) and see if any of the wires look loose, shorted, or burnt up.

Let us know.

Your codes are all related to the throttle body. Ford wants you to replace the entire thing but you can usually buy just the Throttle Body Position sensor. Either way if you replaced the TB or sensor did you do an idle relearn? It's simple to do.

1 - Start with a cold vehicle and turn off everything in the vehicle like lights, heater, and anything else that draws battery power.
2 - Disconnect the negative battery terminal from the battery. And make sure it cannot touch the post.
3 - Use a jumper lead to connect the disconnected cable terminal to the positive battery cables terminal.

DO NOT ALLOW IT TO SHORT TO THE NEGATIVE BATTERY POST.

4 - Leave it connected for about a minute. This will drain the power from the PCM and wipe it's memory of idle and shift settings.
5 - Remove the jumper wire and reconnect the negative cable to the battery.
6 - Turn the ignition key to the on position and let the gauges/lights run their test.
7 - Wait twenty seconds and start the engine. The PCM will now use the various sensors to learn the idle control for the replacement TB unit.
8 - Let the van warm up to full operating temperature. The PCM will continually adjust the idle as the engine warms up.
9 - Shut off the van and let it cool down. Overnight is good.
10 - Start the cold van and drive as you normally do for about five to ten miles. This will allow the PCM to relearn the shift points and throttle positions for the new parts.