TunerCat problems

[JnJSpdShop]

Well friend stopped over tonight with his Syclone. I was checking out the Prompaq installed in the vehicle and opened it up and found 1 27256 chip and 1 stock looking memcal installed. The stock memcal wouldn't read for some reason on my pocket programmer?? I got the chip marked "shoot out" to read, but later when I opened tunercat to take a look at the file it gave me an error message "The ECM Definition File in use is not compatible with tihs source file. The file indicates that the $FF ECM Definition File should be used." Which isn't even listed on the Tunercat site. I am primarily an F body tuner so this SyTy stuff is new to me.

Thanks

 

[JSM]

If he truly has a prompaq I would throw it away as they have proven to not be very reliable.

The one with 256 chip probably has the information loaded in the upper section, requiring you to edit it with hex editor or something else besides tunercat.

I stopped using tunercat as it was so picky.

If the shoot out chip is made by KB, throw it in trash with the prompaq before you need a bigger trash can for a complete engine.

Jeff

 

[leroy]

When you read it in Pocket Programmer, use 4000 as the starting address. End address should be 7fff.

HTH,

Jim

 

[JnJSpdShop]

Okay so a stock SyTy bin was on a 27c128 eprom just like the stock GM MAF TPI bins?? Which requires copying the file x2 before burning on a 256k chip, or changing the burning start address. Sorry but I am noob to SyTy tuning, he just came over last night, so I have alot of catching up to do.

 

[leroy]

Okay so a stock SyTy bin was on a 27c128 eprom just like the stock GM MAF TPI bins?? Which requires copying the file x2 before burning on a 256k chip, or changing the burning start address. Sorry but I am noob to SyTy tuning, he just came over last night, so I have alot of catching up to do.

You've got it. I'm guessing it is just burned into the upper half. Some aftermarket chips, use $AA as the program ID. That disables the checksum. If Tunercat recommends the $AA definition file, just ignore it, and try the $58 file.

HTH,
Jim