digitaloutsider Posted July 17, 2006 Report Share Posted July 17, 2006 Okay guys, really simply, what do I need to be able to flash my Cutlass' EEPROM with my own code? What software is required? What chip burner do I need? I have no idea where to start really, so I'm just looking for a few pointers. Thanks! Quote Link to comment Share on other sites More sharing options...
ShockTherapy Posted July 17, 2006 Report Share Posted July 17, 2006 get ahold of someone who burns chips? i think God910, and a few others have the stuff, and know turbosedan has looked into it as well. Quote Link to comment Share on other sites More sharing options...
rudefyet Posted July 17, 2006 Report Share Posted July 17, 2006 if you can get ahold of Invasion1 he'll tell you everything you need to know he linked me to a $35 EEPROM burner a while back Quote Link to comment Share on other sites More sharing options...
99RegalGS Posted July 18, 2006 Report Share Posted July 18, 2006 Just curious, are you just wanting to tune the car for the 96 intake? If so I'm sure Ben can add some fuel to it. He's tuned a couple cars with the 96 intake now and can probably get close to where you need it. And he can probably do it cheap because it's his chip. But if you're set on buring your own (I really can't blame you, I wanted to do it to the cutlass myself). I'd download Tuner Pro RT, and then go to Moates.net and get either the prom burner or the prom burner/emulator. And buy another EEPROM to program with (just incase you make a mistake and you need it to run now). Then I'd go to Thirdgen.org and read some of the information there. They also have some good links there for more information. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 18, 2006 Author Report Share Posted July 18, 2006 It has nothing to do with the 96+ intakes, really. I just want to try my hand at fine-tuning some stuff myself. So, you had the chip before you put on the intakes? Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 18, 2006 Author Report Share Posted July 18, 2006 Okay. I've got the jist of it all thanks to Ben. Thanks, man!! Quote Link to comment Share on other sites More sharing options...
99RegalGS Posted July 18, 2006 Report Share Posted July 18, 2006 lol, yeah. I got the chip before the intake swap. Infact it was the 1st mod I did to the car. mostly because the car had an AUTO chip in it when I got it. Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted July 18, 2006 Report Share Posted July 18, 2006 Get ahold of a 29C256 if you can. They program FAST and erase FAST. A 27C256 EPROM takes 20-minutes+ to erase and they also take several minutes to program. Plus, the UV eraser for them is around $30-40 itself. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 18, 2006 Author Report Share Posted July 18, 2006 Shawn, these have pretty much superseded all the other chips. It's been ages since someone's used the UV chips. http://www.moates.net/c2-sst-27sf512-chip-p-39.html Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted July 18, 2006 Report Share Posted July 18, 2006 Ah, cool, thanks for the info. I bought some 29C256's years ago. I didn't know about the 512mbit chips. You could actually probably program 2 chips into one of those and switch between them by simply flipping a switch. I'm sure someone's figured that out already though. I have actually seriously considered selling my EPROM programmer because I want to get a programmer that can handle 16-bit flash for non car related projects. Quote Link to comment Share on other sites More sharing options...
94CutlassSLCoupe Posted July 18, 2006 Report Share Posted July 18, 2006 I wish there was a way to tinker with my damn 94-95 3100 PCM Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted July 18, 2006 Report Share Posted July 18, 2006 Where there's a will, there's a way! You'd have to want to do it really really badly though. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 18, 2006 Author Report Share Posted July 18, 2006 Do the 94-95's have removable MEMCALs? Quote Link to comment Share on other sites More sharing options...
slick Posted July 18, 2006 Report Share Posted July 18, 2006 Do the 94-95's have removable MEMCALs? 3.4's, yes. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 18, 2006 Author Report Share Posted July 18, 2006 Ah, so the 3100/3800's got a REAL bastardized thing? Is it like the OBD-II PCM without any removable chip? Quote Link to comment Share on other sites More sharing options...
slick Posted July 18, 2006 Report Share Posted July 18, 2006 Ah, so the 3100/3800's got a REAL bastardized thing? Is it like the OBD-II PCM without any removable chip? Yep. Thats why Ben can still tune the 94 and 95 3.4's, but not anything else. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 19, 2006 Author Report Share Posted July 19, 2006 Hmm. I need to get my hands on a 94-95. Quote Link to comment Share on other sites More sharing options...
99RegalGS Posted July 19, 2006 Report Share Posted July 19, 2006 94-95's 3800 PCM's still have a removable chip. It's smaller too. Shaun, you really wouldn't want a 94-95 3100 PCM for programming. They're only programmable by flashing the EEPROM. In theory it a much better way. The 94-95 3800 PCM is the same way, it just has the removable EEPROM though. There's a problem though. There's not an aftermarket program for our PCM's to re-flash them. There is a program for the 94-95 LT1's to reflash. But I read that the makers do not intend on expanding the program for other engines. So in reality you're best off with what you have. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 19, 2006 Author Report Share Posted July 19, 2006 lol, I KNOW I don't WANT OBD-1.5, I just wanted to toy with it, and see if there was any way at all possible to make chips for the poor bastardized guys. You couldn't pay me enough to swap to OBD-1.5. I'm not a moron Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted July 19, 2006 Report Share Posted July 19, 2006 lol, I KNOW I don't WANT OBD-1.5, I just wanted to toy with it, and see if there was any way at all possible to make chips for the poor bastardized guys. It's possible, but you'd have to want to do it really really badly. It would involve pulling the chip (desoldering probably required) and sticking it in an EPROM programmer. Reading the code. Now you've got the code, you need to map out the tables... BUT you probably won't know what the tables mean unless you disassemble the program code. Disassembling the program code means running it through a program that turns all the hex values into assembly language. Now that you have disassembled source code, you'd have to go through it line by line trying to figure out what it does. The disassembler program is also specific to the CPU, so you'd have to find out exactly what the CPU chip is. Once you've mapped out the chip, you can probably also figure out what's required to flash new code into it via the OBD connector without having to pull the chip. Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted July 19, 2006 Report Share Posted July 19, 2006 You could actually probably program 2 chips into one of those and switch between them by simply flipping a switch. I'm sure someone's figured that out already though. There are chips like that available for Grand Nationals/T-Types. Quote Link to comment Share on other sites More sharing options...
Baddflash Posted July 20, 2006 Report Share Posted July 20, 2006 Looked at that chip and the specific one you want is SST27FSF256-70-3I-PG. I've also seen chips that with various programs like a valet mode etc.. It would limit RPM, SPEED and RUNTIME. It would be nice if you were dropping a car off for some tires or something unrelated. Quote Link to comment Share on other sites More sharing options...
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