Just how does this affect the engine/trans/ABS electronics?
hi MI_Ghost,Just how does this affect the engine/trans/ABS electronics?
It will be running a different PCM, the 0411.
Basically it's just popping the wires out of the old connector, then popping them into the new connector at the proper places for the new PCM. Doesn't require cutting/soldering/anything, once you take the connector apart, you can just pull the tab back and the wire pulls through the back of the connector. Easy as pie.
Then you would flash the new operating system to support the 4.3, if not already for the 4.3.
It would make sense to move to the 12212156 OS if it's not on that one already, as there is excellent support for that OS.
Jeff- aka Lextech over at efilive forum has a bunch of spreadsheets for these swaps.
Faster computer than the earlier vans, better tuning options, etc.
They break pretty easy, nothing to worry about though.i don't have the "feel" for getting the gray plastic caps off of the back of the connectors - i broke both of these......
I am waiting patientlyand finish up the fan mounting design that you're waiting on for me to send your front panel. whew..
Here is a write-up that has some great pictures of taking the connectors apart, re-pinning, etc. 12200411 PCM swap - GM Truck Central
Basically the same. Except now we have PCMhammer GitHub - LegacyNsfw/PcmHacks: PCM Hammer & PCM Logger, tools for General Motors Powertrain Control Modules (PCMs). to be able to read/write the PCM using cheap hardware. If you are using a supported OS you can use the free TunerPro TunerPro and TunerPro RT - Professional Automobile Tuning Software with the proper XDF to copy/change tables/options/etc.
For changing the PCM pins, you look up your current application pinout, and then the one from the donor PCM/OS and make a spreadsheet like the one attached below, filling out what is needed(remove .txt from attachment), you can use LibreOffice if you don't have MSO https://www.libreoffice.org/
Note: Don't just take this spreadsheet and run with it, compare it to YOUR specific circumstances.
Just an example spreadsheet.
You can create one that also has your 99 pinouts listed as well, if you are into that kinda thing
Makes it easy to post/share/download/print a copy when it's all said and done.
thanks for the kind words MI_Ghost !!I am waiting patiently
I will add you as my 2nd goto source (behind Will) for electronics.
I can make things work mecanically. Electronically I am a smoke maker (I know enough to know that I am dangerous).
thanks!!!!!!!!!!!I will throw these here as well and then I think I'm done cluttering up your thread.
Have to remove the .txt file extension.
it's important to have an adult in the room here - thank you for keeping an eye on things!!!!!!!!!!!!If you have any problems running in closed loop, take a look at the o2 sensors. Don't know if they were different between the 99 and 02, grey vs black plugs.