Moving from 1227747 What is the best TBI ECM to use?

[kilohertz]

I still am not sure what chip size it is but I was able to read it properly as a 27C512 and here it is. I'll let the more experienced folk check it out and confirm it's a good BIN file and I'll extract the 7.4 manual EPROM tomorrow. I loaded it into TunerPro RT with $OD and it looks like good data.

It's dinner and I need to light a fire...damn cold in here.

Cheers

[In-Tech]

The checksum(70BB) is correct so that file should be fine. Looks like a good read.

[kilohertz]

I decided to build a little adapter to allow me to read the EPROM while it is still mounted on the MEMCAL thus able to get a good BIN in case something goes south in the chip extraction. I can also use it for burning whatever chip I decide to use, undecided on that as my programmer won't do 27SF512. Looking for other options.

Here is the 7.4L Manual Transmission BIN file from the 7427 for the group to enjoy, I am not sure how to confirm checksum, maybe someone could tell me how to do it for future BINS. I also am posting a few pics of the little adapter I made, just a simple piece of cct brd with a little cut down the center to separate the 2 sides.

Cheers!

PS, extracted the second EPROM no problem, and both knock sensor hybrids. You can see one needs a pretty fine tip to get these out in one piece.

[dave w]

My choice for programming EFI Chips is the BX32P https://www.newark.com/batronix/bx32...batronix+bx32p

My choice for Erasing EFI Chips is the LER-121A https://www.newark.com/leap-electron...4?ost=ler-121a

I admit, my chip programming and erasing choices are not budget friendly. I've yet to find an EFI chip the BX32 won't program. The BX32 has a chip identify feature too. I use the LER-121A to erase memcal chips too.

dave w

[In-Tech]

Thanks for the files. hehe, you wouldn't believe the hodgepaws of adapters I have had to fudge together over the years. Good job :)

[ScottP]

The old timers probably all know this, but for those new to working with the 95 and earlier TBI and TPI
ECMs/PCMs/TCMs, Moates has a really nice selection of adapters and tools.

http://www.moates.net/hdr1-memcal-he....html?cPath=64

http://www.moates.net/gm-19851995-c-64.html

-Scott

[kilohertz]

I successfully read the 4.3L BIN file, it's BJWX from the '96 7427 and if it's new I'll upload it to the BIN thread.

Cheers

Okay it seems the ECM/BIN file threads are locked and I can't post the BIN files I have to share, sooooo, I'll just put them here and someone else can move them to where they belong.

[1project2many]

Thank you! I'll see about getting these moved later today.