Chips in a OBDII PCM?

[RobertISaar]

actually, new info, and i should have known, but it's actually a 16 bit PROM... so 16 + 20 + etc = TSOP44 package. the space between the centerlines of the legs on the PROM is .8mm.... i'd like to think i'm damn good with a soldering iron, but that's tiny... doing that without a hot-air solution or otherwise fully computer controlled would be quite difficult.

[dave w]

There are companies like; QPL http://www.qplpcba.com/default.cfm that have PCB rework capability for IC's like an '0411 flash chip. Several years ago when I was doing the PCB failure analysis for Planar Systems in Hillsboro Or, QPL assembled and re-worked Printed Circuit Boards for Planar Systems. If there was enough interest, I would think QPL would be willing to install flash chip zif sockets to a small volume of automotive Printed Circuit Boards. The challenge I see with an '0411 PCM is having enough clearance in the computer case for the zif socket?

I'll also comment, the Moates.net Burn2 is not capable of reflashing the flash chip used in an '0411 PCM. A chip programmer similar to the ones offered by BX http://www.batronix.com/shop/program...ogrammers.html would be required along with the required chip adapter http://www.batronix.com/shop/adapter/index.html

I'm still thinking if / when restrictions for OBDII tuning happen, there will be ways to still continue on with OBDII tuning.

dave w

[RobertISaar]

for that kind of money, the newer Willem units (4 series) will program nearly anything and for significantly less $$$... i believe the Intel 28Fx00 units from the 0411 included.

i'm sure there is plenty of room inside to just mount a ZIF socket on the surface of the board... based on what i've seen of the internals anyways. if the roadrunner will fit in the case, then a ZIF socket should be no problem. building a little access door so you don't have to open it completely would be a nice addition as well.

i can see the EPA cracking down on the diesel DPF stuff since it's all relatively new, but general gasoline tuning? wouldn't count on it.... if they had put their foot down when the subject was new, it would be effective, but not now... it's too widespread for them to have any hope of stopping it. CARB is ridiculous and they still aren't able to detect/deal with a lot of it.

[EagleMark]

Looks like the Roadrunner has a header and ribbon cable and board, I know Moates sells the header and would probably sell the ribbon cable? So would that put the chip outside?

rr_guts_kit.jpg

Doesn't sound like a lot of wires needed, diagrams are all there...What kind of bin file to run it on another rig? Like OBDI...

[EagleMark]

Looks like loads of room if Moates can stuff a seperate board in there...

The guts of the LS1 controller look fairly typical for a modern electronic part. The flash memory chip is labeled "A" and the processor is labeled "B" in the shown photo.
0702ct_09_z+factory_pcms+.jpg

[RobertISaar]

huh..... i actually expected more ICs.... then again, the 68332 on it's own can do a lot more than the 6811 on it's own. there are a LOT of drivers.

[JeepsAndGuns]

So what would be the benefit of doing this? I know nothing about OBD2.
I'm guessing this simply removes the need for flashing through the obd port? What has caused the desire to do this?