Sorry. I actually gave up on MEFI a while back. To many better and affordable ECM options out there now.
MEFIburn is the only software I know of which allows you to make such fueling changes. I...
Type: Posts; User: KidTurbo
Sorry. I actually gave up on MEFI a while back. To many better and affordable ECM options out there now.
MEFIburn is the only software I know of which allows you to make such fueling changes. I...
Yeah I'd be happy to share notes one the GM stuff. I recently only discovered that all OS in the Corvettes, and possibly a couple others LS, used a completely different ArbID structure. So I've been...
I don't yet have all the specific TCM related messages mapped, but can certainly help you locate them. What's the ECM model, year, and OS version are your using?
Reason I ask, just recently...
The 08 BCM will work in stand alone mode. Just need to look at the pinout list and see what all it normally controls. It uses two CAN networks, a high speed that communicates with the ECM/TCM, and...
Have our CANbus gateways converting HS GMLAN protocol into other languages on high speed networks. So getting the info needed from the 09 ECM is easy. Issue then is converting HS LAN down to class 2...
For some reason GM buffered the oil pressure out of the ECM. At least on 2007.5 and up LMM Duramax. I tested the other day on a 2006 LBZ and noticed it was also buffered, but the open circuit value...
Yes it's all CANbus protocol. Details listed above are from the 500Kbps "High Speed" GMLAN they switched to in like 2006. While typical OBD-II commands are still usable, the ones I'm focused on...
Update on project. I've been able to nail down some of the ArbID's and data values contained in certain byte positions. I was specifically after IC gauge data, so here a list from 2007 and newer GM...
Hi all,
I recently finished up our Holley EFI to N2k gateways for the performance boat guys. Now starting work on a firmware to do HS GMLAN to J1939 and N2k protocol gauge output. Since I don't...
PM sent.
Mailbox is full. :yikes:
Nice project, sure wish you lived closer. Would love to test with that data logger, it likely does everything we need to capture. One of the guys over on EFIlive forum...
Think the firmware is written in C. My embedded systems developer friend took the design specs and ran with it. Everything is being hard coded so far. We started this project to accommodate guys...
Hi guys, been working on a little project for some of my boating buddies and could use a hand with the MEFI data side.
What I am working on is converting some proprietary CAN data from different...
I'd find a bigger throttle body for certain. Nothing cuts the power like limiting the air intake. NASCAR used the restrictor plate rule for two decades, because it works. No matter what you do to the...
Time to acquire a lock was a major concern for my VSS project. However one of the things I like about this manufacture, they seem to have some pretty smart engineers. The custom Harley crowd swears...
LOL, that's a fairly common comparison I hear... The sound comes from a mix of straight cut gears in the out-drive, twin 4" exhaust outlets, and the turbo inlet being directly under that scoop on the...
OK here it is, resistance map for temp sensor Scaling 1 & Scaling 2 tables. Thanks for the math lesson guys...
...
Yep that works.. :happy:
I was using the ADC Count calculator form on page http://www.megamanual.com/v22manual/mwire.htm to come up with the counts. Entering the Bias value and then estimating...
FYI: From what I have verified so far.
Our reference voltage is 5v of course.
ADC Count scale is 0-1024
Scaling1 "Hot" uses 348 Bias Ohms
Scaling2 "Cold" uses 4000 Bias Ohms
I'll post the...
Thanks guys. I believe that post is the one that brought me here :thumbsup:
About 80% of the temp scales overlap [see EFI screenshots above]. I've mapped out the factory resistance GM used, in...
Attached is an example of two IAT sensors resistance scales from the GM LBZ engine. The IAT sensor I just installed is close to the the IAT2 listed there, but not exactly the same. However it's a...
Been working on problem related to the GM ADC or A/D converter function used by GM ECM's.
Simply wanted to relocate the IAT sensor for my E60 [LLY Duramax] ECM from the combined MAF/IAT unit to...
I'm all about speed... :geek:
http://www.youtube.com/watch?v=tvd-w7lk1Eo
Hauling butt, while also being about the "Greenest" thing out on the water has an added cool factor. If I could only...
That's kinda what got me on this project with the diesel. Needed the ECM to know when I was floating around "docking" or cruising down the river. Plus I have a couple J1939 CAN display units in the...
I tried building a couple DIY analog style setups before finding this little unit. First was a hall effect paddle wheel setup specifically made for boat nav/depth units. Looked good on paper, but...