CK5
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Why EFI owners don't Program their own PROM's?

Wonder if you know the math required to determine correct fuel pressure for a built engine? I had read somewhere you need to know approx HP and the size of injectors then you can determine the presure needed so said injectors put out enough fuel for engine?
I found the web page with information on this so figured I would add it to the tuning Sticky.
http://www.megamanual.com/v22manual/minj.htm
 
o.k., after my edelbrock thread I'm hooked...I have just enough electronics training to be dangerous...:doah:

I have actually modded a couple of guitar amps and some effect pedals.


I am going to download the tunerpro and do some studying...


I appreciate the work you put into this Dave...you rock. :waytogo:



wow, all those "I's" just look wrong...:doah:
 
Where?

I've got the first part of the download with tunerpro RT, even got the definitions, but when I go to the ftp link it asks me for a secure log in, I have never been there, I try the anonymous, doesn't take either. Now what, maybe I'm missing something, maybe I'm just tired just looked at the clock and noticed I've been studing online at a few forums for 8 hours now. What the hell am I doing wrong?:what:
 
I've got the first part of the download with tunerpro RT, even got the definitions, but when I go to the ftp link it asks me for a secure log in, I have never been there, I try the anonymous, doesn't take either. Now what, maybe I'm missing something, maybe I'm just tired just looked at the clock and noticed I've been studing online at a few forums for 8 hours now. What the hell am I doing wrong?:what:

You are doing nothing wrong!

I just tried the ftp link myself. The ftp link is not working. I don't know why.

Try the Moates.net link.

dave w
 
I'll try that in about 8 hours from now.

Thanks

Bob

Let me know if the screen shots below help?

dave w

Moatesnet01.jpg


Moatesnet02.jpg


Moatesnet03.jpg


Moatesnet04.jpg


Moatesnet05.jpg
 
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You guys are bad asses. So, im starting to think i wanna burn my own chips. I have a spare 7747 computer that i can try my hand at soldering on. I'm confident that i can do that. I already have my usb ALDL cable. Also i have downloaded tunerpro. So that being the case, if my understanding is correct, All i need to buy is the zif socket ($10), Burn2 $(85), and 27SF512 EEPROM $(5) right? And all of this is available from moates? Is there a right up on both modifiying the zif socket and soldering it to the ecm?

EDIT: After some clicking and reading, it looks like this is everything that i need right?

http://www.mouser.com/Search/ProductDetail.aspx?R=28-526-10virtualkey53500000virtualkey535-28-526-10

And this is the burn2,

http://www.moates.net/burn2-chip-programmer-p-197.html?cPath=94

and this is the EEPROM chip,

http://www.moates.net/c2-sst-27sf512-chip-p-39.html?cPath=26
 
Just read the write up. Seems simple enough. On the g2 adapter, does it still get soldered in? Is there any benefit of it over the zif socket?
 
Just read the write up. Seems simple enough. On the g2 adapter, does it still get soldered in? Is there any benefit of it over the zif socket?

The G2 can be soldered in. Most common way to use the G2 adapter is with a 24 pin dip socket soldered in, then plug the G2 into the 24 pin dip socket.

The 28 pin ZIF socket is soldered in and can be modified to function like the G2 adapter, with the added ease of being able swap chips in and out of the ZIF socket easily!

DSCN3194.JPG

DSCN3376.JPG

DSCN3378.JPG
 
Yup, just wanted to through out options there.

Recon let me know when your ready and I can solder one up for you but I need parts and shipping. I go to the JY Here end of August and strip cars of there EFI stuff before they get crushed and usually end up with plenty of spare ECM, harness and parts.
 
The G2 can be soldered in. Most common way to use the G2 adapter is with a 24 pin dip socket soldered in, then plug the G2 into the 24 pin dip socket.
If you are a good solderer you can just solder the G2 into the ECM. Then the chip will clear the cover. With the dip socket and a G2 the chip will hit the cover. Not bad but you have to leave one screw out of the cover.

I say good solderer because if you mess up a G2 it's $30. and if you mess up a dip socket it's like $2.

Since dave has done this writeup I plan on doing all mine this way as it is a lot cheaper.
 
You may want to point out that TunerPro now stores the Bins/Bin Definitions/Layout folders in My Documents.
Never mind this is covered in the other Data logging & burning thread.
 
My brain hurts.

I know what socket to buy, I know I'll need burn2, the right EEPROM which has been identified by y5mgisi and an ALDL cable. Anything I'm missing here?
 
My brain hurts.

I know what socket to buy, I know I'll need burn2, the right EEPROM which has been identified by y5mgisi and an ALDL cable. Anything I'm missing here?
First a laptop with TunerPro so your ALDL cable has somewhere to put the data it collects.

Then you need to look at data, learn what needs to be changed, make changes and burn chip.

The socket and chip change just make it so much easier than trying to find a UV eraser for a chip that has not been made in 20 years.

Now you can put the 27S512 chip in the Burn 2 and click erase and click program.

there's a lot more! If you really don't have the time and desire to do this then don't! Take it as a new hobby and learn a little everyday. If you don't have time, desire and pateince your going to end up being a bad dad!

After I learned all this I went a step further and bought the AutoProm. It not only records data, burns chips but will emulate! Emulating is taking the chip file (BIN) and installing it in the AutoProm and plugging the AutoProm into where the chip goes. Now when your watching your BLM and they need a change you just change them and re-up-load to AutoProm. I can drive around and make a 100 changes and when I am done and think it's perfect I burn that file to a chip and install it.
 
Here's a picture of my AutoProm. I added a Moates O-Meter to it with a LC-1 WideBand O2 sensor.

The LC-1 will replace the narrow band O2 sensor and has an extra wire to go to where you O2 sensor was hooked to your ECM and simulates that signal so your car still runs.

But now I can tune the car to a differant AFR than Stoich 14.7 to 1 for more power! :eek1:

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O-Meter-AutoProm.jpg
 
Then when your bored in the winter you do this! I can run 2 EFI systems at the same time with this bench.

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EFI Test Bench.jpg
 

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