I finally aquirred the ability to scan, I finally figured out how to burn chips and now when I plug it in I get absolutely nothing. I know that it's probably something I'm doing wrong but help me please. Lets start with the equipment. I have the following.
1. Winaldl to scan on my laptop.
2. AKM cable
3.Tunercat for my ECM
4.Pocket Programmer
5. Moates Zif adapter and chips
Now the problem. I can read data from my Ecm with the factory chip. I can alter the parameters and download to the new chip. I can see the new chips info so I'm guessing it's programmed. When I plug in the new chip I get nothing so I'm guessing thats where the problem starts. I think it's now running off the limp mode chip. I cannot read any data with the new chip plugged in. If I plug in the old factory chip it runs a little better and I can read data again. Is it the way I have the adapter or chip setup and does this make enough sense for someone to tell me what I have done wrong? Thanks again.

 

What type of car and what type of chip? You might need to double or quadruple the bin on the chip.

Tim

 

Tim, I get a little scared when telling you it's not a third gen that I'm working on. Would it help if I told you that I own a third gen that is not causing me any trouble or that I am rebuilding a first gen. Just kidding about the paranoia. The present trouble is with a 89 GMC truck I use as a tow rig. It runs the 747ECM and the chip I am using to burn with is a AT29C256. The cause of the trouble came from rebuilding a motor that the stock chip won't run due to modifications.
I am sorry but I am not up to speed with the double or quadruple bin thing. I am so new to this and don't have a complete grip just yet. Is this a certain way to burn a chip? I would also like to ask another quetion you may have an answer to? Are you familiar with the moates zif adapter and if you are what does the small rotary dial do, and what are the settings from 0 thru 7 for? I would really like to get the first burn under my belt so that I could undertand enough to start tuning but the first chip is a real tough customer so far. Thanks Scott

 

The software section of the Moates site has a "bin compiler" program. It allows you to put multiple bins on the 29C256.

The rotary switch determines which one of the multiple bins the ECM wil use.

It seems your troubles stem from not having the rotary switch set to the same position the BIN is burned to in the EEPROM. I can't help you with which postion it should be in. However if you use the Bin Comp program and burn the same bin into all the positions the truck should fire and run regardless of were the switch is set to.

 

When I burn a chip I burn I plug it straight into the pocket programmer,and it doesn't have the rotary type switch. I leave the Moates adapter with the rotary switch plugged into the ECM not ever unplugging it. Are you saying I should plug the rotary zif adapter with the chip installed into the pocket programmer when I burn the chip and then transfer the whole setup back to the ECM after the chip is burned? If I don't make sense let me know. Thanks Scott

 

No. That would probably result in letting the smoke out of either the burner or the EEPROM. You are doing it correctly.

The burner software determines which of the eight 32K address blocks the bin gets burned to. The rotary switch merely selects the block you want the ECM to use.

Moates probably explains somewhere in his doc's what addresses the 0-7 positions correspond to.

 

I thougt this stuff was going to be tough but man this is not fun. When I started I know I had an IQ of more than two, but now I'm not so sure. Any one else got any ideas?

 

Sorry if I was unclear.

I think this will be the easiest way to explain it.

Get Bin Comp from the Moates site

edit and save a bin in Tunercat *bin should be 32K in size

load bin eight times into Bin Comp and save as a new bin *bin should be 256K in size

burn this new bin onto the 29C256 and you should be ready to go. The truck should run with the rotary switch in any position using this method.




This isn't quickest method but I'm not sure I can explain the addresses and so forth for the other method.

 

Brent did a great job at covering what the problem is. I'll add just a quick little line to it ....


The 29C256 has 256k of memory. It will only run in ECMs designed for a 256k EPROM (plug n play). The 747 was designed for a 32k EPROM. The 29C256 is NOT a plug and play in this situation. You'll need to stack the bin on top of itself 8 times (32k times 8 = 256k). That way the entire 256k chip has data on it.

Now, if you have a Moates adapter with the chip selector then in theory you should be able to only burn it once and select the correct portion of the PROM using the selector. My guess is that you have the wrong section selected.

If it were me I would just bin stack it 8 times and give it a try. Then you will KNOW that the correct image is selected because they will ALL contain the 32k program you are working on.

Tim

 

Brent and Tim, I appreciate your patience. I now understand what is necessary and why for the chip. I really hope this will start me off in the right direction. If I can get it to run then I'll worry about the rotary selector next. Will let you know how it goes. Thanks again.

 

Here's an update. I have now burned a chip. The pocket programmer has a bar on the left side of the screen that allows you to coose many things. My problem came under the BYTE PROGRAM category. Given three choices of 8 BIT BYTE, WORD ODD, and WORD EVEN. I don't remember what it was originally set on but as soon as I changed it to 8 BIT BYTE it burned a chip that will run the car, YAHOO.