https://www.usbjtag.com/zenshop/inde...products_id=11

It's not US built but it's a quality product. Might be from Canada.....don't recall off hand but it wasn't China.
The above device is what I have written a "Guide" for if you will on how to install and use it. Any other brand/type your on your own.

Just keep in mind this requires opening the pcm up and soldering onto the pcb. It's not done over the data port.

 

Awesome thanx, i have just ordered two of them, I like to have spares.
If you ever need any testing, let me know
I have over heaps of pcms here Ls1, E38, E40, BA-FG Pcms
I have open licenced HP Tuners
Many scan tools
And heaps of other gear as well..
Always happy to help..

 

This is awesome ^

I bought one as well, so I'll pm you my email to get the instructions.

 

To make it easier for people who are interested in a hard wired method soldering to the pcm's pcb I've uploaded every thing to google drive. To keep this thread clear of questions you can PM me if you would like to know more. If that brings is a wave of questions on this method I may just make a new thread specifically about this but for now I'll do questions on a per-person basis.

https://drive.google.com/open?id=19d...tO6w4lnQ8S9ViL

 

 

You'd have to cut the terminals free of the Pcm's PCB more then likely as they are most likely grounded....it's bad form to leave terminals floating.
The next issue you MIGHT run into is interference from being in such close proximity to the other signal wires from the engine.
USB cables have a specified maximum length, once you exceed that all bet's are off. In most cases a quality cable can be several feet longer with out an issue but results may vary from one cord to the next.

But in theory what your saying would work...although drilling a hole in the pcm's case isn't the issue it's keeping the USB cable end clean and dry.

For those that have't read the instructions document, when using the BDM there is 1 wire that needs to be switched "On", it puts power to the flash chip that allows writing to it. You can read the Pcm with out this wire but it MUST be turned on to write. One of the aspects of using the PIE ZERO to do this was that you could use one of the Pie's I/O pins to handle the switching automatically. Doing it as suggested above also would require a switch be placed in the same area as the USB cable's end so you can enable write. If you leave the switch "On"....nothing bad will happen but it car won't start. You have to turn the switch"Off" and turn the ignition switch off to return the PCM to a "Normal" state. It's still totally doable but slightly inconvenient.

If someone was knowledge with Linux or specifically the Raspberry Pie and was able to write a simple program to do this I'd be more then happy to work with them to make this a viable option over Wi-Fi/BT...... talk to your friends

 

 

Been following these threads now for years I'm really looking forward to playing with this hammer when it's done. I'd love to help but have no computer skills lol I can use software and help to some degree to make xdfs files but that's about all the computer skills I got. I've started to help contribute by starting an xdf over at pcmhacking for my 2000 grand prix Gtp plan to add more os versions once I'm done the one. And Great work to everyone that has made this continue to grow. Thx for everyone's hard work.

 

what computer does the gtp use? the clear and black connector one?

 

Hi Pete, I just purchased a Raspberry P3 AND the 7" touch screen. (starter kit)

I would like to use this type of item to "flash, store, and edit" GM calibrations.

I will also make a "daughter" card for my uses.

There is plenty of I/O (shift light, etc) AND board mounted Broadcom Wi-Fi.

I would like to "share" my progress with LS-1 tech members

Will you, Pete, be willing to "guide" my work ?

I would like to have a product to compete with the GM-Tech-II.

Lance.

 

Lance , if you and Pete get your heads together, there will be some good outcome!

 

I can offer some insight but I think your looking at creating something that's going to be much more difficult then you anticipate. There is a partially finished command line version of the Pcm Hammer(Pcm Chisel) that was being worked on to port the code into Linux but was never finished. I'm not sure if it's still on Github or not but I still have a copy of it regardless..... your welcome to work from that and it would be much....much faster then writing a program like it from scratch. To run on a windows command line I'd guess it was about 90% complete if I remember correctly, from there you could work on getting it onto the Pie once you know it's working correctly.

Then you'd either need to get one of the existing devices working on the Pie like the Allpro or Obdlink or you'd need to create your own J1850 VPW interface and write the firmware for it.

If you were looking for an "easier" way out but it's not a portable solution there is already support for the USB BDM NT on the Pie. Not an amazing option but the flash times are only a couple of seconds VS a couple of minutes if done over the data bus.

Now let me propose an alternative to your Pie interface idea. I already have the program and interface circuit designed to use an Arduino. The program use's 6% of the storage space leaving plenty of room for adding on to the existing code. The Arduino's are also compatible with a great number of displays and can support touch screen interface although it's not going to be as "Nice" looking as the Pie it would be just as functional.

You could also use the Arduino in conjunction with the Pie but change the arduino into a transceiver to communicate with the vehicle. The existing code wouldn't take much to change it over to something more like a pass though device to talk to the vehicle.

If this is something you plan on pursing I'd suggest creating a new topic and sending me the link by PM. I'd be happy to discus this idea in greater depth openly for others to learn from but I don't really think it's an appropriate conversation to continue in this particular thread or it's going to get way off track.

 

The guy who did the command-line version got into a disagreement with his employer over who owns the rights to what he did, so his stuff had to be removed. However he was just getting started, so it's not a huge loss, just a bit of a set back.

I agree with Pete that we should start another thread for a Raspberry Pi version. I'll help out when I can.

On the Windows from, we are very close to having something that we can release that will read the contents of the PCM.

 

how's that flash kernel coming along?

some of us are very anxious to start flashing. let me know where to express mail cases of redbull and monster to

 

...and pizza.

 

Two other people have also started working on other aspects of to the Pcm Hammer over the last couple of weeks that should really help get things rolling. Let's just say this may end working on more then just the P01 and P59 pcm's......... but it's still too early to say exactly what other pcm's they are working on adding compatibility for just yet

 

I am looking for someone in Florida that can Dyno Tune my 1991 C4 the car has a 390 stroker, 10.5 -1 compression . runs rich needs fuel and air and timing set. Anyone know of a shop please share.

Thanks

 

Please don't hijack other people's threads with non-related stuff.

 

that actually makes me think of something. when I was looking at all the available xdf's for Tunerpro I stumbled across a file definition for the DME in my pre-obd2 '93 BMW

how does one interface with a vehicle that doesnt have a regular obd2 serial port?

 

Not sure you can, unless one can somehow tap directly onto the motherboard, as you would need access to all inputs/outputs. Good question!
I think the OBDII connection has spoiled us to a degree! lol