well I have an account, so Ill give it a shot since Im not much of use otherwise LMAO.
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well I have an account, so Ill give it a shot since Im not much of use otherwise LMAO.
Do we have pictures of all the different flavors of JTEC hardware? I ask because that LinkedIn profile suggests three evolutions of hardware... I'm interested in how interchangeable the code itself is, as I've a friend who just acquired a 2001 XJ and is asking after fooling with it.Quote:
Originally Posted by enlight22
Hum... http://www.nastf.org/files/public/DC...x_10-29-04.xls
Looks like 96-98 JTEC, 99-04 JTEC+, and JTEC Lite is for uncommon auto trans control. I think I have a bricked JTEC+ somewhere, should compare handily to the engineering sample JTEC I have kicking around.
More looking about has JTEC+ as a pretty fractured market. 99+ 4.7's have their own hardware as they are COP, with a few other quirks among the distributored 3.9/5.2/5.9 hardwares, and I haven't even looked at the Jeep stuff yet. There's some 3-->4 ECU plug changeover that happens between '02-'04, might be early NGC3 controllers - IDK, the only NG3 I've fooled with is wiring a resistor into two 05 SRT-4 so they couldn't throw a code for the battery temp sensor when flashed with 04 code, and I don't remember what they looked like.
still interested in this thread. I wish I could contribute more. just found out that tuition assistance was cut today(AF) so thats going to hurt my ability to get more formal training in this field. still studying in my free time(which isnt much) and its amazing how much is out there to learn, just not very organized and not complete.
You're fine. I was worthless when I got into this - not that I'm all that and a bowl of grits now, but I've come a long way. It takes time and effort, just like everything else in life.
From JTEC.info: http://jtec.info/index.php?title=Fil...C_Overview.JPG
The engineering sample ECU has a daughterboard clipped on top of the MCU, with ribbon cables going from it to the three rows of pads on either side if the MCU. Pair of Hitachi HM628128LFP-7's, couple SMT components and a transistor. I'll post pics when the internet is back up at the house.
ping
so what is the purpose of the daughterboard then?Quote:
Originally Posted by mekkis
bump
might want to try that again... red text is quite garbled.
Good catch, thank you. Red text still sucks, but is readable. I forgot how poorly mspaint rendered jpgs.
Progress...
And, honestly, as per the chipping OBD2 GM thread, if I had some SMT pin headers on hand I think we all know what I'd rather be doing. Unless JTEC has funky ground plane issues that prevents dual Ostriches, like some Nissans. In which case I have a QH collecting dust. Just needs some adapter boards, and I'm in the running.
FYI, the chips are the quirky odd/even affair. I used the venerable (Nissan) Rom Editor to merge the binaries, but I understand WinHex supports that function, and John Kerr of Nismotronic fame has a simple utility he scripted that does the same.