programming a $42 cip

Hi, This is a first time to post hear, But I am new to this, I have a 89 chevy ecm #1227747 and I can not get it to program correctly? This is what I have done,I soldered the new dip socket and pluged a zf socket into that in the computer board,I can plug the original 4kb chip in and the truck will run fine, but if I copy the program on to a 27sf512 chip and plug it in with no changes to the program it runs in limp mode with the check engine light blinking. I am using a apu from moats for the programming, I have done an $od 64kb several times with no issues so I know it is something I am doing wrong. PLEASE can some one tell me where I am messing up!!! THANKS 83iroc383

Post the offsets you are programming the 27SF512 chip with.

http://static.moates.net/manuals/FlashAndBurn.pdf

dave w

I have tried 000000,00ffff and 000000,000fff and neither work

I looked at the file you sent and I think I had chip and buffer start and stop points backwards, I will try it tomorrow and let you know THANKS for the info

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Originally Posted by 83iroc383

I have tried 000000,00ffff and 000000,000fff and neither work

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I think you missed an "F" in the Chip Start / End addressing 00F000 - 00FFFF:thumbsup:

dave w

File Size

Chip

Buffer Start -> End

Chip Start -> End

4k (4096)

27SF512

000000 -> 000FFF

00F000 -> 00FFFF

Buffer is the chip size, 4k chip is buffer address 00000 to 000FFF.

Chip start -> end is the address you want the 27SF512 to have the 4K chip, Starting Addess is 00F000 with the ending address 00FFFF.

The 27SF512 chip is 64K in size, you only need the last 4K of the 64K available in 27SF512.

"There are 10 kinds of people" those that understand binary and those that don't.:laugh:

dave w

Quote:

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Originally Posted by dave w

Buffer is the chip size, 4k chip is buffer address 00000 to 000FFF.

Chip start -> end is the address you want the 27SF512 to have the 4K chip, Starting Addess is 00F000 with the ending address 00FFFF.

The 27SF512 chip is 64K in size, you only need the last 4K of the 64K available in 27SF512.

"There are 10 kinds of people" those that understand binary and those that don't.:laugh:

dave w

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Dave: Did I read somewhere that 27SF512 had to be erased first? Can someone link me to info about programming it with apu1 or flash and burn?

http://support.moates.net/autoprom-apu1/

The 27SF512 will need to be erased before programming.

dave w

Did you figure this out? Im having the exact same issue.

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Originally Posted by falconvan

Did you figure this out? Im having the exact same issue.

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Are you using the APU1 with Tunerpro and a 27SF512 chip?

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Originally Posted by uncabob

Are you using the APU1 with Tunerpro and a 27SF512 chip?

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Im using a Burn 2 with Tunerpro and a 27sf512 but Im using Flash & Burn to burn the chip. Dave sent me a starter bin file to put on the chip so I am taking that file directly to Flash & burn and onto the chip.

S3TPI said that the flashing CEL indicates that the ECM is not reading the PROM and the chip adapter connection may be at fault. I had an electronics shop install the ZIF socket for me; just trying to eliminate other possibilities before I take it back to them.

What did you find with yours, did you get it working?

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Originally Posted by falconvan

What did you find with yours, did you get it working?

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TunerPro was not seeing my hardware (APU1) and I had to download the Moates drivers again (.dll files) and install them. Be sure to erase your chip first and address it right (see Dave's remarks).

checksum can make cel flash too...................

Checksum? What is that?

I'll try this, too.

I tried reinstalling the drivers and looked up how to disable checksum on Moates website. I made a separate bin file with checksum disabled. Also went back and checked continuity on all the ZIF solder connections including the 5 pins that get tied together. Still same issue.

Have you tried throwing a factory chip into the ZIF and seeing if it would still work? That should ensure that there were no problems introduced by installing the ZIF.

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Originally Posted by fastacton

Have you tried throwing a factory chip into the ZIF and seeing if it would still work? That should ensure that there were no problems introduced by installing the ZIF.

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That was a great idea. The only factory chip I had was out of the 6 cyl computer but I gave it a shot and I have the same problem. I don't get it; according to my ohmeter all the connections have continuity where they should and are isolated where they should be.

I have the same problem with one of the 7747 to 7427 adapter harnesses I built. I've triple checked everything and it seems fine, but just doesn't work right. It can be very frustrating.