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  1. kidturbo

    HS GMLAN Gateway

    Been working on a pet project with help of a few other members here, and about ready to start production. But looking for a little more input on best options before finalizing the code. Earlier this year I developed this little IP67 rated CAN-2-CAN gateway for some performance boat engine...
  2. kidturbo

    LML Marine swap

    I looked through a dozen GM drawings, coolant port to EGR was best I could tell. But on the LMM's it was actually lower in that cover and on the drivers side.. Humm. I did find where the LML's have a catch can / oil separator for crankcase vents now? It drains back into the oil pan on...
  3. kidturbo

    LML Marine swap

    Hawk, I finished up work tonight mapping out all the gauge related CAN data off my "exstreamly generous" buddies LMM truck. Now have everything "digital" engine related to make plug-N-play gauges on future marine or specialty swaps. Converting all that GMLAN engine data into NEMA 2k or...
  4. kidturbo

    ppei korry willis

    I bet the whole autocal thing does create headaches for guys like Kory. I'm only on V2 license #21, (18 of those dmax) and just two share everything but the VIN #. So can't even imagine trying to school every customer on how to load, unload, and not brick their ECM along the way. Plus sort all...
  5. kidturbo

    Medium Duty CAN bus Protocol

    His statement was only that in 2013 the ability to swap modules between vehicles went away in everything including trucks. Like taking an ECM or BCM out of one truck, changing the VIN, to plug it right into another one. We never specifically discussed the LML, only the LMM in medium duty setups...
  6. kidturbo

    Medium Duty CAN bus Protocol

    Tuned that friends LMM truck today and tested our VATS options. Worked much as I suspected, with VATS set to off, any key that turns starts it. However not when BCM is disconnected. So I called up the guys I know had done it for the answers. GM tech buddy said up to 2013 you can disable VATS...
  7. kidturbo

    Medium Duty CAN bus Protocol

    I verified a couple interesting points over the weekend hacking around on a LMM. 1. The BCM is the gateway (translator) between high speed bus and the low speed GMLAN. It's also a gateway between the DLC16 connector and high speed bus. 2. High speed bus from engine harness connects to the BCM...
  8. kidturbo

    Lly knock on cylinder 2, tried everything..

    Return where you left off above.. Verify compression on that bank first. You know it's not an injector since you switched them out, correct? So leaves 2 possible causes, compression or electrical. My money is on low compression, that +3.6 is not super high like a bad electrical miss. A blown...
  9. kidturbo

    Medium Duty CAN bus Protocol

    Last time I spoke with them, they were using a straight off the line LMM VAN engine, adding their own water cooled exhaust, charge cooler. and some small parts. The reset of those pieces are Mercruiser. They ran a custom tuned LMM ECM (360 - 500hp at crankshaft), paint it white, and slap a $35k...
  10. kidturbo

    Medium Duty CAN bus Protocol

    They won't voluntarily come off anything related, I've tried. Partly the reason I was inquiring about the medium duty stuff that started this thread. But it's not rocket science either. On the cooling, both open and closed loop builds. Mine was open, no issues besides not salt water friendly. -K
  11. kidturbo

    Medium Duty CAN bus Protocol

    Thanks Ben, I'll get on that from the LMM side. I just verified the boat is true a 08 LMM junk yard swap with no BCM. It's a long distance support relationship, he's in out in CA. Not sure if a member on here, but Rob at DT wrote the base tune, so he can verify OS. I'll bet out there next month...
  12. kidturbo

    Medium Duty CAN bus Protocol

    To answer my own question. Think we need try this with a LMM, since the manual trans option was gone by LML correct? Plan B, is hot wire the starter solenoid. -K
  13. kidturbo

    Medium Duty CAN bus Protocol

    One thing I've noticed, Bosch designed all this for MB several years before GM got it. My 05 E320 (which is basically the exact same CR fuel system as an LMM) uses very similar security and starting structure as you've listed above. So our possible data pool to learn from likely includes MB...
  14. kidturbo

    Help: 2003 Oil pressure gauge

    Yes verify mechanical side then move to electrical. Likely it's a broken wire near the main harness plug. Here is a link explaining it further.. http://www.duramaxdiesels.com/forum/showthread.php?t=40192
  15. kidturbo

    Medium Duty CAN bus Protocol

    So if swapping an LML engine only, or engine and transmission into a boat or other vehicle, you think we could just broadcast a correctly formatted "all good" message over the HS bus and the ECM would happily function. Easy enough to test using the CBT unit to spoof as a TDM. If that works, it...
  16. kidturbo

    Medium Duty CAN bus Protocol

    On the wife's Benz, I finally broke out the Modus oscilloscope to figure out what was crashing the bus. That 83k network is two wire, then falls back to single wire on errors. It's also non-terminated, and operates at higher voltages than the standard Bosch CAN versions like our high speed...
  17. kidturbo

    Medium Duty CAN bus Protocol

    Here ya go. http://forum.canb.us/discussion/217/gm-infotainment-bus-low-speed-single-wire-33kbps#latest I ran into a similar problem with my MB E320 which runs a 83.3kbps two wire fault tolerant convenience bus. It's all a Bosch thing.. Derek recently updated the CBT software to include that...
  18. kidturbo

    Medium Duty CAN bus Protocol

    Receive your CBT yet Ben? I've been reading up on GMLAN, there is 2 different bus layouts in a LMM truck. Here is a few notes to get you started. According to the 08 LMM schematics, you can access both the high speed and low speed bus directly from the DLC plug. Low speeds a single wire as...
  19. kidturbo

    Medium Duty CAN bus Protocol

    That's pretty good Josh... Deciphering high speed CAN messages is about like in "The Matrix" when they are watching the screens of binary data streaming while someone was jacked in. CAN messages looks identical to that in raw form. If you stare at the screen long enough, you'll swear ya can...
  20. kidturbo

    Medium Duty CAN bus Protocol

    I believe the CBT has the added ability to do K-line, which being single wire might help. I know it supports 10k bus speeds on CAN, but default config is two wire. You can read up on the MCP2515 CAN transceiver and see if anyone has written the code for using single wire. Only issue I have...
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