Tuning options for Dodge Mopar

[mekkis]

BTW, this was given to me some months ago and I've not had a chance to crack it open yet and peek. The black heatshrink affair at the top left is a stack of watch batteries with power wires going into the case, I assume to maintain memory on some sort of volatile RAM affair, and my hand is blocking two wires banana clipped together which I assume to be some sort of communications bus. Worst case it's junk or complicated, best case it's something straightforward and relevant to real time flashing/tuning.

[enlight22]

well that is interesting, i wonder what is inside? where did that craziness come from. Might be an instrumended jtec... i have heard of such a thing mentioned... never seen one.

[34blazer]

maybe those wires connect directly to the main processor itself? interested to see what you find....

[enlight22]

i wonder if this guy could be of assistance, http://www.linkedin.com/pub/emilio-perez-pmp/7/b60/487

have a look at his resume, he worked on this pcm, search jtec in his profile, worked at motorola aieg, on the my series of controllers for daimler chrysler...

probably wouldnt help us though... but itd be nice..

[34blazer]

well I have an account, so Ill give it a shot since Im not much of use otherwise LMAO.

[mekkis]

i wonder if this guy could be of assistance, http://www.linkedin.com/pub/emilio-perez-pmp/7/b60/487

have a look at his resume, he worked on this pcm, search jtec in his profile, worked at motorola aieg, on the my series of controllers for daimler chrysler...

probably wouldnt help us though... but itd be nice..

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.

[mekkis]

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.

[mekkis]

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.