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Old 08-27-2004, 11:45 AM   #1
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Default eprom programming

As the name states, I am in the process of doing a little eprom programming. I have talked to drifter420, and he took a look at the schematics, and said I would be able to do it. So, now I need to know a little information.

1) Are the eproms in OBDII systems erasable/reuseable? and what about the OBDI systems?
2) What funtions are controlled by the ECU in 87-91? 92-95? 96-99? and I am not even going to attempt to look at the 00+, due to there being just waaaay too many things controlled.
3) Is anyone willing to donate an ECU [broken or not, all I will need is the eprom from it], for some studies by me?
4) What are some of the values that could and/or should be changed for a little increase in power or whatever? This question would apply to any generation, but I think a different answer would apply to each generation.


-justin
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Old 08-27-2004, 03:20 PM   #2
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Went on over to rat shack.. They have some, but not all the parts I need. They have the caps, diodes, transistors, resistors, circuit board, etc.. all the basic [if you will] supplies. but not the advanced stuff like the 74HC157, and some other misc stuff. Does anyone know of a computer specialty store which would have these things? i've searched ebay, and all I come up with are schematics, and places which sell computers, and computer components.


-justin
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Old 08-27-2004, 05:35 PM   #3
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Quote:
Originally Posted by opensourceguy
but not the advanced stuff like the 74HC157,

-justin
I am going to my parents probably tuesday.. so if you remind me.. I will try and remember to make a detour to see if a specialty shop I go to have them or can order them..


EDIT: I might have a 92 SSEI ECU if I decide to pick up that parts car for Tamara'* car.. hee hee.
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Old 08-27-2004, 08:10 PM   #4
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I use www.digikey.com Their catolog is bigger than all three of my FSM'* combined.
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Old 08-27-2004, 09:08 PM   #5
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I've got a wild idea, dunno if you can do it...what do you say I send you my Jet stage 2 chip and whatever else needed and you can errmm...copy it...? Dunno if its possible tho but if it is hey, free sheit. Plus you can compare what they changed to stock. Lemme know
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Old 08-27-2004, 09:45 PM   #6
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are you serious? holy crap hell yeah! drifter and I were talking about doing that, to change a couple of variables to increase power. i have to decide right now what is more important, either getting my car running, or trying to make money. I am leaning a little more towards making money. Let me make sure I can find all the parts, and how much it will cost.

Damemorder: thanks man, that catalog is HUGE! and its free! ah i love free things.


-justin
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Old 08-27-2004, 09:48 PM   #7
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haha yeah just let me know how things work out
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Old 08-27-2004, 10:44 PM   #8
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ok I should have everything priced out this evening. If I can afford it, i'm going for it. Hopefully this won't cost more than $40.. everyone cross your fingers!


-justin
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Old 08-27-2004, 11:28 PM   #9
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*fingers crossed*
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Old 08-27-2004, 11:38 PM   #10
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more than $40 for a programmer? err...yeah I believe so man haha. But do you know of one for that cheap? I've only seen them for $150+ but I'll buy one tomorrow at $40 haha.
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