Low Cost DIY '7747 Chip Programming

[dave w]

I finished modifying a '7747 ECM for a Flash Chip using a ZIF socket ( http://www.moates.net/s4-aries-28pin-lowprofile-zif-p-46.html?cPath=26 ) $7.00. With this modification to the '7747 chip holder, a '7747 can use flash 27SF512 chips ( http://www.moates.net/c2-sst-27sf512-chip-p-39.html?cPath=26 ) $5.00 and these chips can be burned using the Moates.net Burn2 chip programmer ( http://www.moates.net/burn2-chip-programmer-p-197.html?cPath=94 ) $85.00. Soldering is REQUIRED!! Best thing about this modification is that everything fits under the chip cover!

dave w

 

[4X4HIGH]

I finished modifying a '7747 ECM for a Flash Chip using a ZIF socket ( http://www.moates.net/s4-aries-28pin-lowprofile-zif-p-46.html?cPath=26 ) $7.00. With this modification to the '7747 chip holder, a '7747 can use flash 27SF512 chips ( http://www.moates.net/c2-sst-27sf512-chip-p-39.html?cPath=26 ) $5.00 and these chips can be burned using the Moates.net Burn2 chip programmer ( http://www.moates.net/burn2-chip-programmer-p-197.html?cPath=94 ) $85.00. Soldering is REQUIRED!! Best thing about this modification is that everything fits under the chip cover!

dave w

Until you want to run an emulator then it no longer fits since you also have to use a booster at that point as well. One of these days i'll get around to making a new cover for my ECM and start playing with chip burning myself. I already have everything needed to do it.

 

[dave w]

Until you want to run an emulator then it no longer fits since you also have to use a booster at that point as well.

Absolutely correct, but what is low cost about $175.00 Ostrich 2.0 Emulator ( http://www.moates.net/ostrich-20-the-new-breed-p-169.html?cPath=95 )? Using an Ostrich 2.0 Emulator still requires de-soldering the old '7747 chip holder and soldering in a chip socket ( http://www.moates.net/d1-24pin-dip-socket-p-58.html?cPath=26 ). The use of a socket booster $40.00 ( http://www.moates.net/socket-booster-10-p-171.html?cPath=26 ) is required with '7747 and Ostrich 2.0 Emulator.

The 27SF512 chip can be burned using freeware TunerPro. The Ostrich 2.0 can be programmed with TunerPro RT, but there is a suggested $30 donation for TunerPro RT.

dave w

 

[mrdrinksalil]

Make sure you DON'T use the regular socket shown here...

http://www.moates.net/s2-aries-28pin-zif-socket-p-44.html?cPath=26

Soldered directly to the board w/ a chip the cover will not clear. However, this socket is much more durable for lots of swapping back and forth between chips.

 

[eagle mark]

So what is the purpose of the G2 memory adapter at $30. if you can use the S4 Aries 28-pin Low-Profile ZIF at $7. ?

I have always used the G2
http://www.moates.net/g2-memory-adapter-060-leg-spacing-p-36.html?cPath=64
I guess because it was recommended for my AutoProm?
http://www.moates.net/apu1-autoprom-package-usb-version-p-54.html?cPath=64

Which also ties into Wideband...
http://www.moates.net/ometer-and-lc1-w-o2-p-142.html?cPath=48

And with just the G2 soldered directly to the board the cover will clear with a chip!

No socket booster needed with an AutoProm, just need booster for Ostrich.

 

[dave w]

So what is the purpose of the G2 memory adapter at $30. if you can use the S4 Aries 28-pin Low-Profile ZIF at $7. ?

The ZIF socket needs to be modified by connecting pins 1, 2, 28, and 27 to pin 26. The G2 memory adapter does the same thing by connecting pins 1, 2, 28, and 27 to pin 26.

dave w

 

[lak2004]

I finished modifying a '7747 ECM for a Flash Chip using a ZIF socket ( http://www.moates.net/s4-aries-28pin-lowprofile-zif-p-46.html?cPath=26 ) $7.00. With this modification to the '7747 chip holder, a '7747 can use flash 27SF512 chips ( http://www.moates.net/c2-sst-27sf512-chip-p-39.html?cPath=26 ) $5.00 and these chips can be burned using the Moates.net Burn2 chip programmer ( http://www.moates.net/burn2-chip-programmer-p-197.html?cPath=94 ) $85.00. Soldering is REQUIRED!! Best thing about this modification is that everything fits under the chip cover!

dave w

So I am a dummy and know very little about computing. Is this all I would need to start burning chips for my 7747 ECM? Or would I need other components to hook to my pc? THanks

 

[eagle mark]

Yup! The other way you don't have to solder in a new chip socket but then you have to have a UV eraser for the old chips. Also the old UV style chips are very unreliable when it comes to erasing and burning a new one. Also they are very hard to find new old ones as they are not made anymore and the used ones are even more unreliable!

 

[lak2004]

So if I purchase those 3, I can start burning? Sweet! How easy is it to then burn chips? Lets assume I know nothing!

 

[eagle mark]

Well I just looked at it and yes you can burn the way he says but you will still need an ALDL cable to record data so that adds about $50.

If you know nothing than it's just a learning curve but theres a bunch of information on the net plus we will help you here...

so maybe you start a little differant than what Dave said first post and get a ALDL cable to record data. You have a laptop I hope?

Cause there's no reason to burn a chip if you don't know what to change and to know what to change you need to record data from the ECM while driving around. Cheapest software to do this is, FREE! WinALDL

Best place I know to get a cable is ALDLCable.com I think but Moates has the same prices so support them because thats where your going to go back to for the chip, adapter and a burner.. May even get a deal if you buy it all first shot, they used to have packages for starter stuff like that.

When your looking around check out the AutoProm. It comes with cables, burner and you can hook it up to ECM to Emulate which means you run off the BIN in your laptop and make changes LIVE. But does bring the starter price up...

 

[eagle mark]

Here's a good first read straight from Moates:
http://support.moates.net/2009/05/07/gm-86-95-obd1-guide-read-me/

 

[zombiyjay76]

Dave,Eagle, what are your thoughts on the Dynamic EBL system? Just got the cable a few weeks ago to log data.

 

[dave w]

Dave,Eagle, what are your thoughts on the Dynamic EBL system? Just got the cable a few weeks ago to log data.

I'm sure the EBL system is a good product.

I like using factory parts, because service parts are available everywhere. Using factory parts will work with diagnostic equipment used by dealerships and independent service centers.

dave w

 

[dave w]

So if I purchase those 3, I can start burning? Sweet! How easy is it to then burn chips? Lets assume I know nothing!

Another option is to send an ECM to Moates.net and have them install a chip adapter. Moates sells a 24 pin to 28 pin adapter, so the ECM can use the 27SF512 chip.

dave w

 

[lak2004]

Ive already got a cable that I made and Winaldl. I just got a usb to serial and tried it out yesterday and I was getting all the readings in Winaldl. Now I just need to know what the hell they mean. I remember seeing how to log data or rather post it up here but cant find that thread. It definitely is running rich. I have a new distributor and plugs I am going to swap in this weekend if I get time and then I will log some data.

 

[lak2004]

Another option is to send an ECM to Moates.net and have them install a chip adapter. Moates sells a 24 pin to 28 pin adapter, so the ECM can use the 27SF512 chip.

dave w

Is it pretty easy to solder one in? I have some soldering skills but nothing on boards. I do have a buddy who does a bunch of soldering who could probably do it for me.

 

[dave w]

Is it pretty easy to solder one in? I have some soldering skills but nothing on boards. I do have a buddy who does a bunch of soldering who could probably do it for me.

Soldering an older circuit board with "through hole" components like the '7747 chip sockets are not difficult, but practice makes perfect. Older boards like the boards used in the '7747 can use leaded solder, which is easier to solder with because the leaded solder will flow at a lower temperature. The only challenging spot to solder on the '7747 chip socket are the ground pins, because the ground pins "wick away" heat. The ground pins in the '7747 chip socket are large traces and act like "heat sinks" when soldering. The ground pins on the '7747 require a fine balance of heat and time to solder, to much heat for to much time will burn the ground connection inside the board. Not enough heat for not enough time will create a "cold solder" joint and that's BAD!

dave w

 

[eagle mark]

Dave,Eagle, what are your thoughts on the Dynamic EBL system? Just got the cable a few weeks ago to log data.

I have never had one. But reading up on it sounds like an excellent idea and has options built in that can;t be dupjicated with factory set ups. So my opinion would be good, I would actually like to have one. As far as what owners say about it it also has great reveiws and tech support issues are handled very well. If you were to get one I don't think you would be unhappy.

 

[dave w]

Dave,Eagle, what are your thoughts on the Dynamic EBL system? Just got the cable a few weeks ago to log data.

The newer factory TBI PCM's (with the red / blue connectors) 16168625, 16197427, & 16196395 have about the same processor performance as the Dynamic EBL system. IMHO (In My Humble Opinion): When using TunerPro RT with a newer TBI PCM's there really isn't that much difference to justify the expense of an EBL system. As an extra free bonus, the newer TBI PCM will operate a 4L60E / 4L80E 4 speed electronic overdrive transmission. The Dynamic EBL CAN NOT operate a 4L60E / 4L80E.

I've upgraded an older '7747 to a newer TBI PCM, see my post '7747 R.I.P. http://coloradok5.com/forums/showthread.php?t=270253

dave w

 

[dave w]

The newer factory TBI PCM's (with the red / blue connectors) 16168625, 16197427, & 16196395 have about the same processor performance as the Dynamic EBL system. IMHO (In My Humble Opinion): When using TunerPro RT with a newer TBI PCM's there really isn't that much difference to justify the expense of an EBL system. As an extra free bonus, the newer TBI PCM will operate a 4L60E / 4L80E 4 speed electronic overdrive transmission. The Dynamic EBL CAN NOT operate a 4L60E / 4L80E.

I've upgraded an older '7747 to a newer TBI PCM, see my post '7747 R.I.P. http://coloradok5.com/forums/showthread.php?t=270253

dave w

Update, I forgot to mention the use of the Moates.net Ostrich2 ( http://www.moates.net/ostrich-20-the-new-breed-p-169.html?cPath=95 ), TunerPro RT, and newer TBI PCM is equivalent to an EBL System.

dave w