Chips in a OBDII PCM?

[EagleMark]

[QUOTE]GM Tech wrote:
I have a locked LS1 pcm and was trying to figure out how to unlock it without removing the prom. Would be interested to see something like this. :punk:[QUOTE]

[QUOTE]Tre-Cool wrote:
Should be able to do it with a pomona 6109 test clip and eeprom burner.

I'll post back by the end of the week if it works. :-)[QUOTE]


http://www.mouser.com/ProductDetail/...2b%252bwWzUw==

6109.jpg

[RobertISaar]

wouldn't that also power up the processor.... and pretty much every other chip on-board? unless the PROM has it's own +5V power supply circuit?

[EagleMark]

That's for smart guys like you to figure out!

[Caleditor]

On several PCM's the flash chips are not the only chip that contains the flash. Several PCM flash the mem chip and part of the ECU. If you have a bad flash on several of the PCM's you will need to pull the mem chip and the ECU to repair the bad flash depending on the location that the flash failed at. The older Delco PCM mostly.


The Newer ECM's have another issue that can not be simply repaired by fixing the flash also. That's a whole other story

[EagleMark]

http://stores.ebay.com/Funkward-Tech...sid=1037341693

[EagleMark]

Think I found everything needed for this?

http://www.evc.de/en/product/other.asp

[dave w]

Think I found everything needed for this?

http://www.evc.de/en/product/other.asp

The socket (chip installed) and adapter board look correct to me.

dave w

[Caleditor]

This is what we use. Do not even bother with the 3x. We have one and it is not worth using. The 3x is a 32 pin and the 4x is a 40. The 3x must convert the 32 to a 44 pin. Everyone that has one complains that it will not work 80% of the time.

http://www.gqelectronicsllc.com/come...namicIndex.asp

[Caleditor]

I will sell my POS 3x and all of the sockets for 1/2 retail price

$98 for the 4x and another $50 for the 2 main sockets --> I am purchasing it now

[dave w]

This is what we use. Do not even bother with the 3x. We have one and it is not worth using. The 3x is a 32 pin and the 4x is a 40. The 3x must convert the 32 to a 44 pin. Everyone that has one complains that it will not work 80% of the time.

http://www.gqelectronicsllc.com/come...namicIndex.asp

Nice to see you take an interest in this tread. I'm wondering if you have a PSOP chip socket adapters like the one I posted a pictured of? Maybe you have a picture of your PSOP chip socket adapter installed into a PCM. The real challenge / purpose of this tread is to be able to swap the PSOP chip.

dave w

[Caleditor]

Nice to see you take an interest in this tread. I'm wondering if you have a PSOP chip socket adapters like the one I posted a pictured of? Maybe you have a picture of your PSOP chip socket adapter installed into a PCM. The real challenge / purpose of this tread is to be able to swap the PSOP chip.

dave w

I have a PSOP44, PLCC32, and a SOIC8 adapter

We mounted a PSOP44 clamp on a board, but the chip would not stay connected on the road. We purchased a few of the sockets

This board has a JTAG/BDM pad


This is the socket we used
http://www.dobbertin-elektronik.de/d...kel-psop44.htm

We tried this one also
http://www.kempower-motorsport.com/i...oduct_id=19638

We looked at several

http://www.logicalsys.com/painfo-vpa...er=PA-DSO-4406


http://www.logicalsys.com/painfo-vpa...PA-SOD6SM18-44

http://www.logicalsys.com/painfo-vpa...-SOF-D630-44/6

[dave w]

We mounted a PSOP44 clamp on a board, but the chip would not stay connected on the road.

Dang it! Not the information I wanted to learn.

dave w

[JeepsAndGuns]

What ever happened to the idea of using a small pcb and socket using the moates header they use on the roadrunner, basicly making a small prom only memcal (of a sorts)

[Caleditor]

What ever happened to the idea of using a small pcb and socket using the moates header they use on the roadrunner, basicly making a small prom only memcal (of a sorts)

Like this that I posted
DYI parts
http://www.logicalsys.com/painfo-vpa...er=PA-DSO-4406


http://www.logicalsys.com/painfo-vpa...PA-SOD6SM18-44

http://www.logicalsys.com/painfo-vpa...-SOF-D630-44/6

[dave w]

What ever happened to the idea of using a small pcb and socket using the moates header they use on the roadrunner, basicly making a small prom only memcal (of a sorts)

Using the links from Caleditor, the two parts below could be used to make the chip in the '0411 removable. Based on comments from Caleditor and other tread followers, the chip socket is not positive locking enough for service in a moving vehicle.

dave w