Sorry that I don't have any real constructive input to offer.Now, ill sum up and say the article claims fluid leaks, blown exh manifold bolts, carbon dioxide build-up, bad fuel, cam position sensor, oil viscosity, all can lead to pcm failure on the 06 dakota, and says theyre known for pcm/electrical issues.
Does anyone have any experience with any of these issues on these dakotas? Theres a slight oil leak near the crank pulley- no others locations, no other fluid leaks. Fuel system cleaner (ive used berrymans b12, royal purple, and liqui-moly jectron in her the last 2 years), new die hard gold 65-2 battery with fresh terminals, cleaned grounds, regular oil changes with penzoil 5w30, everything that should be done regularly to prevent issues. I am trying to get some input and ideas beyond checking the wiring harness, etc. Im pretty much stumped on this one. I have never seen nor heard of a vehicle of any kind going thru pcm's like this.
Any thoughts would be most appreciated. Next step is to have someone else go thru the harness and check for anything i may have missed.
I can tell you that I have read a whole lot of posts on this & another Dakota site regarding to buggy computers & problems related to suspected buggy computers; however, most of the posts I pay the closest attention to are on the Gen2s.
I've read a few theories about the PCM failures; someone once said that they were related to where the PCMs are positioned in the engine compartment & heat being an issue but I'm not sure I see that, someone else said that they mostly had questionable solder joints going on. . . .
My own '03 Dak suffered a PCM failure back in (I think it was) '18 with 60 some K on her, & at the time I thought that was rather premature. Of all of the potential causes that you listed from that article, my Dakota had/has none of them.
After my troubleshooting pointed at the PCM I did some research to help me decide what to do, & I remember watching a Youtube in which the Youtuber was saying that he had had so much bad experience with reman Dakota PCMs he didn't trust them at all & he felt that the remans were mostly coming from Dakotas that had been scrapped & the people selling them were simply doing the most cursory & rudimentary checks on them & then selling & shipping them as remans . . . I don't personally know if there is any truth to any of that.
I did elect to send my PCM out for diagnosis & repair. The facility I sent it to told me they found a broken solder joint on a pin & they told me they also replaced a coimponent in the coil driver circuit, & I seem to remember it being a transistor, but I cannot be absolute positive about that. They charged me about $100 and change (I could check the actual receipt) & did claim a lifetime warranty on the work that they performed & I haven't yet needed to see if that will hold up.
It also seems possible, after reading your OP, that your current problems might be happening somewhere else on your bus system. My '03 is on the PCI Bus, but that ended in (I think) '04, & I think your '06 would be on the CAN Bus system.