LT1 ECM 16188051 repair source?

[EDZIP]

Try flashing this bins.
They are split for e and t side.

Before programming the chips make sure you erase them.
After the write is complete, test read them and make comparison.

If the chips are flashed correctly and there is still no communication, there is a chance you flipped them, or there is a bad solder. Double check all the solders with magnifying glass to be sure.
Stoch chips are very durable and should last 100000 write erase cycles.

Can I ask you what programmer you`re using and what type of chips.

Also t side is responsible for communication. You can still manage to connect with blank eside chip, but the engine won`t run.

kur40

Thanks for the encouragement...might still be hope!

The chip in PCM is the FLASH AN28F512, I also have a couple AM29F040B,,,been flashing them on a Mini Pro TL866CS. Have a Moates Burn 2..but the chips aren't supported.

Will try your bins and double check the positioning. Soldering is OK verified by a test light.

COULD you explain which is the T side? The eprom has one flat corner and appears to insert only one way?

[kur4o]

This Pcm has two flash chips. One on each of the circuit boards. They are AN28F512 Intel chips.
You need to flash bin1 on the chip that goes on T-side circuit board and bin2 on the chip that goes on E-side circuit board.
You need to identify which chip goes where by trial and error or find pictures to identify sides.
If you flip chips Pcm will not fry so don`t worry.

[EDZIP]

This Pcm has two flash chips. One on each of the circuit boards. They are AN28F512 Intel chips.
You need to flash bin1 on the chip that goes on T-side circuit board and bin2 on the chip that goes on E-side circuit board.
You need to identify which chip goes where by trial and error or find pictures to identify sides.
If you flip chips Pcm will not fry so don`t worry.

Well that's my problem..I was only half done:-)

My grandson just arrived for the weekend so may be a bit before I get to the other side. BTW when I attempted to program either of your BINs got a message something along the lines that the parameters were not correct....but I'll try again when I have more time.

Thanks for getting me back on track.

[kur4o]

The full bin is 128 kb size. It is used in tunerpo and tunercat that way.
Each chip contains half of the full bin.
Bin1 is first half (64kb size), bin2 is second half (64kb size).
I guess there is a problem with the bin size not set correctly in the programmer.

[EDZIP]

kur40

Looking at the blue/gray board and the picture of the 32 legs..it appears that of the top -7- legs and from left to right #3 and #7 are dead end? They don't appear to be connected to any circuits?

[kur4o]

You are right, these are not connected internally.
Here is the pinout of the chip.

[EDZIP]

Been trying various combinations today, even tried loading a stock 95 LT1 BIN on both proms (T&E)..still no communication with PCM. Can read another 16188051 that I have so I know that the hardware/cables are working.

Double checked and re-installed/soldered the sockets..still no communication. Burned the FLASH AN28F512 several times with my new Mini-Pro TL866CS. Attached copies from the chips. Tried positioning the chips in various positions (up/down) within the socket. Been attempting the read/programming with both E&T boards not installed inside the aluminum covers if that makes a difference.

Do the bins look OK?