Which?

Lost time, no longer a Jeep owner, etc. That's how life goes.

No, sorry.

A datasheet and a multimeter answers that.

Those pads alongside the flash are what the "instrumented" 96-98 JTECs daughterboards are attached to.

It is located in this post some pages back. I made notes to this thread as I was laid up on the shop couch, sick, hashing out the .xdf

Uh, yo.

I did it, but it was a clusterf*** of awkward, and I took ~1.5 year breaks from this place.

There are more affordable 28DIP to PLCC32 adapters to make a dual Ostrich setup work now. 96-98 "wrap...

A JTEC. I've done "this" for over a decade, true familiarity with a platform requires tuning 50, and you aren't a master until closer to 500. I have a good grasp of 96 and 97, a good feel for the...

Proof of concept.

Stock 5.9 Magnum with Mopar Performance intake and Holley TB stamped "prototype" on it. Was one of Ronnie Sox's cars, converted to EFI in '98 using a '96 donor.
...

It's a bit pricey, but the concept of a dual Ostrich or RR adapter board is 100% viable.

Learned a hard lesson about JTECs, both chipped ones are now dead. They are the LEAST ESD tolerant hardware I've ever dealt with. I suspect both units would still be alive if I had made sure the...

Basically, what the GM guys only wish was cheap and easy for them, is for JTEC.

http://www.gearhead-efi.com/Fuel-Injection/showthread.php?1440-Chips-in-a-OBDII-PCM

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...

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...

Progress...

Good catch, thank you. Red text still sucks, but is readable. I forgot how poorly mspaint rendered jpgs.

bump

ping

From JTEC.info: http://jtec.info/index.php?title=File:PCM_MC_Overview.JPG

The engineering sample ECU has a daughterboard clipped on top of the MCU, with ribbon cables going from it to the three...

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.

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...

Hum... http://www.nastf.org/files/public/DC-Chrysler_rep_Matrix_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+...

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...

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...

Take it, its yours. I'll try to flesh out the xdf, and fix the broken axes in whats there, this weekend. I'm still sick and not really getting better, so another day of bedrest is in order.