eprom burners, companys with software and laptops!

[jackchan]

I'm really interested in buying someones software to burn chips for my 91 GT 5.0.........thing is the only ones I know of are in DOS (mike westley)instead of windows.I'm not even sure how I would even get up with mike wesley if he did have software for FOX's still available..... I know several companys who make software for 96-98's and 99 up to 04, but I want something I can tune on a 89-93 5.0. I'd like for it to be a handheld or at least allow me to hook up a lap top to it to read codes, and adjust air/fuel etc......All the mags have hand helds for later models but I dont drive a later model.....I drive the best model there is An "86-93" fox bodyed 5.0! So that's what I want to be able to tune.

anyone know of a company that has software that allows something of this sort???? Any help will be greatly appreciated!

thanks
Jack

 

[Daggar]

You're barking up the wrong tree brother. The factory computer does not contain an EPROM that you can pull, erase, write data to, then reinstall. Instead, program functions are retained on a ROM (which once it's set, it's set). There's always the possibility of replacing the EECIV ROM with and EPROM but the chip itself is proprietary and don't like your chances of being able to find a suitable EPROM to take its place.

If you're trying to get into the business of being able to burn custom chips for multiple cars, drop me a PM. I know of a couple of different ways that you can go about burning custom tunes onto chips that plug into the back of the EEC.

If you're attempting to do this for just one car then go out and buy yourself a TwEECer or TwEECer R/T. It takes some book learnin' to figure it all out but it does at least provide some interface between the hexadecimal mess that make up an EECIV ROM and turn them into user changable scalers with names and function.

An example of what you would be dealing with using just a straight EPROM programmer and an add on chip for an EECIV

You can use hex addresses to change memory locations to values you supply. The only value to this is if you know that, for example, location 0x8C10 and 0x8C11 is where the idle is stored and it is a value that is multiplied by 4. You could calculate the changes and deposit the new value by adding the following lines to the modification file you download to your Tuner:

0x8C10 0xFA #in this example, this changes the idle to 1000 (250*4). 250=0xFA

0x8C11 0x00

If the previous description does not make sense to you, forget about it. Go with a piggy back tuner that will provide some interface that I mentioned before.

 

[stang&2Birds]

To read the sensors via the diag port, you need extended diags. So, you need a 94/95 EEC. Then, you can data log with a good AutoXray (?AutoXray 6000?).

There are a few utils and products to burn chips or even have multiple tunes for an EEC IV. Have you seen Greg Motes site (spelling?)?

That along with the Tom Clouds EEC doc and the Ford EEC strategy doc ("preliminary technicalwritten for engineers" will get you pretty far.

BTW: "A While back" there was "test" code to allow the Fox EEC's to send diags info through extra hardware hooked up to the PROM (like the Tweecer does). I played with it for a while. Unfortunately, I lost that code when I moth-balled my Windows 95 system.

 

[65ShelbyClone]

BTW: "A While back" there was "test" code to allow the Fox EEC's to send diags info through extra hardware hooked up to the PROM (like the Tweecer does). I played with it for a while. Unfortunately, I lost that code when I moth-balled my Windows 95 system.

What hardware are you referrng to? Could it do anything besides recieve diagnostic data?

I hate to bring this back, but everyone always says "search!" afterall.

 

[HISSIN50]

I never saw this thread before - thanks for bring it back 65SC.

This has been a hot topic of late - Jrichker has given me some ideas of things I need to research, and the idea behind this thread is right up that alley.

 

[jrichker]

You're barking up the wrong tree brother. The factory computer does not contain an EPROM that you can pull, erase, write data to, then reinstall. Instead, program functions are retained on a ROM (which once it's set, it's set). There's always the possibility of replacing the EECIV ROM with and EPROM but the chip itself is proprietary and don't like your chances of being able to find a suitable EPROM to take its place.

Some first hand investigation on my part with a spare A9P reviles that the prom is a standard Eprom with a clear window over the silicon die. It is a 24 pin chip, so it is likely to be a 2732 type Eprom.

Edit: If memory serves me correctly, if you put a working Eprom in a quality programmer, it will determine the Eprom type and set the specs to read or program the device.

Good engineering tries to use as many off the shelf components as possible, because custom designs for things like proms are expensive. Using a standard component means that your CAD/CAM electronics circuit library doesn't have to include any odd components. That makes circuit design and layout faster & easier. Using an Eprom makes sense because it allows you to make changes quickly and easily. Because it is programmable, one Eprom can be used for the computers of many different types of engines and tunes.

 

[Dbeck002]

My question is this, would you gain anything by breaking down the EEC unit as opposed to tuning it via PMS, Tweecer or megasquirt?

Will one even get anything worthy out of such headache when it can be accomplished by one of the three above tuning devices.



EDIT: I forgot to add, units like the PMS and tweecer give you control of things that even a reflashed Stock ECU would not have control of... So i dont see why one would go so deep into using the stock computer as a tuning platform when aftermarket devices offer more control.

 

[Rick 91GT]

www.sctflash.com I've been looking into there dealer packages as of late As far as I know the Mike Wesly Autologic stuff is long gone and not supported. He is currently at Diablo I believe.

 

[jackchan]

EDIT: I forgot to add, units like the PMS and tweecer give you control of things that even a reflashed Stock ECU would not have control of... So i dont see why one would go so deep into using the stock computer as a tuning platform when aftermarket devices offer more control.

the main reason you would want to go so deep is to tune your car in a stock CLASS like Factory Stock. Sure you can buy a PMS and do most anything you want, but look how many times their PMS has been outdated and no longer supported! The twEECer would be the untimate but, the Factory Stock class does not allow it........which SUCKS. I wished the rule makers would good back and add the TwEECer.........If I'm gonna spend the bucks I'd much rather spend it on a TwEECer than the PMS, which could be alright too, but I dont have enough data to back up what all the PMS can do comparted to the TwEECer.
For basic raising the rev limiter.........I'd like a chip.......with a chip burner program. Sure the aftermarket is leaning towards the newer cars with flash equipment, so tell me this why can't someone come up with a newer harness (especially for race cars only) that uses the newer computers that can be flashed..........ah I know cost! then of course the other problem, NMRA and FFW wouldnt allow the racers to use it because it would be considered some kinda fancy trick stuff that wasnt availible to other racers. Then if and when it did become commericially availible,..........the class would be 2-3 years down the road.
Still makes a fella think I guess.
what processor is in the stock 9AL and what can be done to update it as much as possilble...........humm here we are back at square one.
glad to have the good people of this board to help solve problems like these.
Thanks
Jack