Is this the ecm box?
06-03-2005, 08:14 AM
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Car: Red '89 GTA
Engine: TPI LB9
Transmission: T-5
Is this the ecm box?
Wondering if this is it....?
If so can I just release it by unscrewing these two?
It's supposed to be a tuning chip in it and would like to see what kind. Is it easy to tell?
If so can I just release it by unscrewing these two?
It's supposed to be a tuning chip in it and would like to see what kind. Is it easy to tell?
06-03-2005, 02:32 PM
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Car: 83 TA, 89 TTA, others
Engine: ZZ4 TPI, LC2 turbo v6
Transmission: several, mostly broken
Yes, the black box is the ECM.
There may be two additional nuts on the left side, opposite of the two you drew arrows to. They are hard to reach, so I think it is easier to remove the ECM and plastic carrier bracket together. There are only two screws that hold the plastic bracket to the dash. (just below the blue connectors)
Some aftermarket chips use a completely different carrier, so it's obvious. At a minimum, if the original GM chip has been overwritten, it would probably be missing the GM sticker over EPROM window, and perhaps some other type of label or sticker in it's place.
Post a picture of what you find.
There may be two additional nuts on the left side, opposite of the two you drew arrows to. They are hard to reach, so I think it is easier to remove the ECM and plastic carrier bracket together. There are only two screws that hold the plastic bracket to the dash. (just below the blue connectors)
Some aftermarket chips use a completely different carrier, so it's obvious. At a minimum, if the original GM chip has been overwritten, it would probably be missing the GM sticker over EPROM window, and perhaps some other type of label or sticker in it's place.
Post a picture of what you find.
06-04-2005, 04:57 AM
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Car: Red '89 GTA
Engine: TPI LB9
Transmission: T-5
Thanx Dave_Jones!
Is there something I should know about opening the box itself? I don't wanna brake anything just by wanting to have a look at things. Like static electricity for example?
Is there something I should know about opening the box itself? I don't wanna brake anything just by wanting to have a look at things. Like static electricity for example?
06-06-2005, 02:23 AM
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Car: 83 TA, 89 TTA, others
Engine: ZZ4 TPI, LC2 turbo v6
Transmission: several, mostly broken
I wouldn't worry too much about just for opening the ECM case.
If you're going to touch the components inside, touch a grounded surface beforehand.
When working around electronic devices, IMHO the best thing you can do to prevent static damage is develop good "touch habits", e.g. when picking up a chip, you first touch the surface that it's laying on before you actually touch the chip. When setting a chip down, touch the surface first before you put the chip on it, and when taking a chip from another person you touch their hand first before you touch the chip.
Also, to access the MEMCAL, you only need to remove the small silver cover on your ECM (retained by the two 1/4" hex screws).
If you're going to touch the components inside, touch a grounded surface beforehand.
When working around electronic devices, IMHO the best thing you can do to prevent static damage is develop good "touch habits", e.g. when picking up a chip, you first touch the surface that it's laying on before you actually touch the chip. When setting a chip down, touch the surface first before you put the chip on it, and when taking a chip from another person you touch their hand first before you touch the chip.
Also, to access the MEMCAL, you only need to remove the small silver cover on your ECM (retained by the two 1/4" hex screws).
06-06-2005, 04:24 AM
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Car: Red '89 GTA
Engine: TPI LB9
Transmission: T-5
Originally posted by Dave_Jones
I wouldn't worry too much about just for opening the ECM case.
If you're going to touch the components inside, touch a grounded surface beforehand.
When working around electronic devices, IMHO the best thing you can do to prevent static damage is develop good "touch habits", e.g. when picking up a chip, you first touch the surface that it's laying on before you actually touch the chip. When setting a chip down, touch the surface first before you put the chip on it, and when taking a chip from another person you touch their hand first before you touch the chip.
Also, to access the MEMCAL, you only need to remove the small silver cover on your ECM (retained by the two 1/4" hex screws).
I wouldn't worry too much about just for opening the ECM case.
If you're going to touch the components inside, touch a grounded surface beforehand.
When working around electronic devices, IMHO the best thing you can do to prevent static damage is develop good "touch habits", e.g. when picking up a chip, you first touch the surface that it's laying on before you actually touch the chip. When setting a chip down, touch the surface first before you put the chip on it, and when taking a chip from another person you touch their hand first before you touch the chip.
Also, to access the MEMCAL, you only need to remove the small silver cover on your ECM (retained by the two 1/4" hex screws).
06-06-2005, 04:56 AM
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Car: 83 TA, 89 TTA, others
Engine: ZZ4 TPI, LC2 turbo v6
Transmission: several, mostly broken
Yes, it looks stock.
Take a close look at the sticker for any sign that it might have been removed at some point. (creases, loose edges, etc.)
If none, then it's probably stock, since the sticker would have had to be removed in order to erase the original contents of the chip. Of course, the only way to be absolutely sure is to read the contents of the chip and compare to known stock bin files.
Also, the "sealing" on the small cover was just a foam rubber gasket -- sometimes they're difficult to open the first time (simply from many years of being closed), but they normally pop loose with a little effort.
Take a close look at the sticker for any sign that it might have been removed at some point. (creases, loose edges, etc.)
If none, then it's probably stock, since the sticker would have had to be removed in order to erase the original contents of the chip. Of course, the only way to be absolutely sure is to read the contents of the chip and compare to known stock bin files.
Also, the "sealing" on the small cover was just a foam rubber gasket -- sometimes they're difficult to open the first time (simply from many years of being closed), but they normally pop loose with a little effort.
Last edited by Dave_Jones; 06-06-2005 at 04:58 AM.
06-06-2005, 05:03 AM
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Car: Red '89 GTA
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here's a nother pic with all the codes.
so which chip is what?
so which chip is what?
Last edited by Liquid_Metal; 06-06-2005 at 05:06 AM.
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06-06-2005, 05:17 AM
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Car: Red '89 GTA
Engine: TPI LB9
Transmission: T-5
Originally posted by Dave_Jones
Yes, it looks stock.
Take a close look at the sticker for any sign that it might have been removed at some point. (creases, loose edges, etc.)
If none, then it's probably stock, since the sticker would have had to be removed in order to erase the original contents of the chip. Of course, the only way to be absolutely sure is to read the contents of the chip and compare to known stock bin files.
Also, the "sealing" on the small cover was just a foam rubber gasket -- sometimes they're difficult to open the first time (simply from many years of being closed), but they normally pop loose with a little effort.
Yes, it looks stock.
Take a close look at the sticker for any sign that it might have been removed at some point. (creases, loose edges, etc.)
If none, then it's probably stock, since the sticker would have had to be removed in order to erase the original contents of the chip. Of course, the only way to be absolutely sure is to read the contents of the chip and compare to known stock bin files.
Also, the "sealing" on the small cover was just a foam rubber gasket -- sometimes they're difficult to open the first time (simply from many years of being closed), but they normally pop loose with a little effort.
The thing that made me believe the last owner was a sticker on the rear bumper. I have a friend who's dad has a 5,7 gta that has been chiptuned for sure and it has a similar sticker but different dealer or whatever. So thought it as a sure thing. But I'm guessing these stickers aren't used sparingly
here's a pic.....
06-06-2005, 05:34 AM
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Car: 83 TA, 89 TTA, others
Engine: ZZ4 TPI, LC2 turbo v6
Transmission: several, mostly broken
The large 28-pin EPROM on the left contains the calibration.
ANYX 9375 is the broadcast code (BCC), and PROM ID.
The two small chips on the right contain the cylinder select and limp home stuff.
One thing does look strange to me, which I circled in your photo -- none of the stock MEMCALs I've seen had anything like that. Perhaps someone else can explain it.
ANYX 9375 is the broadcast code (BCC), and PROM ID.
The two small chips on the right contain the cylinder select and limp home stuff.
One thing does look strange to me, which I circled in your photo -- none of the stock MEMCALs I've seen had anything like that. Perhaps someone else can explain it.
06-06-2005, 08:00 AM
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Car: Red '89 GTA
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I was wondering that myself.... didn't look too high tech
Anybody got any idéas please share them.
Could this be the "chiptuning" somehow??
Anybody got any idéas please share them.
Could this be the "chiptuning" somehow??
01-06-2008, 04:15 PM
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Re: Is this the ecm box?
I have to bring this thread back to life, because I brought an 89 C4 memcal, and it has the same "modified" resistor pack. At this point I have to assume it's factory.
12-11-2009, 06:38 PM
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Re: Is this the ecm box?
i have the same chip but the the black chip on the right is numbered 16133420. how weird.. yours chips are numbered one after the other and mine does not have an extra little pin sticking in it...
03-10-2010, 10:26 PM
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Re: Is this the ecm box?
so you cant open it through the little screen? i am looking for the broadcast code cause im getting a chip from pcm4less any help with finding it would be great.
02-02-2012, 03:38 PM
#14
Re: Is this the ecm box?
Really Old thread but interesting. Nowhere can I find any reference to a ANYX Memcal broadcast code. From the pictures and resistor numbers, this is a Memcal for a 1989 5.0 TPI in a 1227165 ECM. The jumper on the netres is definitely not stock but has been added for some purpose. Does anyone know what those two pins go to?
02-03-2012, 03:17 AM
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Re: Is this the ecm box?
I couldn't find it either?
ANYW and ANYZ are 1989 1227165 manual and auto. ANYX is right in the middle and no record in BCC Find Cal Data or BCC lookup?
ANYW and ANYZ are 1989 1227165 manual and auto. ANYX is right in the middle and no record in BCC Find Cal Data or BCC lookup?
02-03-2012, 03:23 AM
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02-03-2012, 11:06 AM
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Re: Is this the ecm box?
Thanks EagleMark. It's just strange that it is in none of the databases even though we know it's a valid BCC. I'm more interested in the NetRes jumper. Anyone have any idea's as to what that's about?
02-03-2012, 11:33 AM
#18
Re: Is this the ecm box?
Interesting subject. I have seen this as well the jumper is a 10k ohm resister. The netress and i/o buffer were changed for some reason in 89. some netress were the 16133420 and to get the correct value when these ran out delphi used the 16072667 in its place and cut pin 52. 51 was cut on the netress and the 1k was jumpered to cal 55
Last edited by Tuned Performance; 02-03-2012 at 11:38 AM.
02-03-2012, 11:37 AM
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Re: Is this the ecm box?
Interesting subject. I have seen this as well the jumper is a 10k ohm resister. The netress and i/o buffer were changed for some reason in 89. some netress were the 16133420 and to get the correct value when these ran out delphi used the 16072667 in its place and cut pin 52. 51 was cut on the netress and the 1k was jumpered to cal 55
RBob.
02-03-2012, 11:49 AM
#21
Re: Is this the ecm box?
More useless information, in 1987 Automotive Digital Systems (ADS super chips) Had these made bye a company named Bourn's who is still in business. Hypertech Also had a company make these 2 chips as well to complete there own memcals.
02-03-2012, 01:00 PM
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02-03-2012, 01:24 PM
#25
Re: Is this the ecm box?
TunedP, now that is interesting. Any more info on that company? I'd be interested to see if they have the AUJP network resistors. Going through my notes I can't even find the resistor numbers do you or others have them? I have the resistor values but not numbers at least can't find them. Boy If I had a resistor source to put on V6 packaging, That would be a great thing for our TPI 3rd gen setups.
02-03-2012, 01:32 PM
#26
Re: Is this the ecm box?
The have since moved and no longer have the schematics nor does ads, They will produce netress but the run is 2000 units. I do have the numbers for the v8 sd application but am unwilling to share that information at this point.
http://datasheet.seekic.com/pdfimage...3-221_3311.jpg
http://datasheet.seekic.com/pdfimage...3-221_3311.jpg
02-03-2012, 02:02 PM
#27
Re: Is this the ecm box?
The have since moved and no longer have the schematics nor does ads, They will produce netress but the run is 2000 units. I do have the numbers for the v8 sd application but am unwilling to share that information at this point.
http://datasheet.seekic.com/pdfimage...3-221_3311.jpg
http://datasheet.seekic.com/pdfimage...3-221_3311.jpg
02-10-2013, 06:37 PM
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Re: Is this the ecm box?
I just came across an 89 C4 memcal APYZ and it also has that funky resistor (or whatever) added on to the chip. Resistors usally have stripes, but this one is not stripped. It's solid blue.
02-10-2013, 09:09 PM
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Re: Is this the ecm box?
What's interesting, the picture above of the ANYX memcal, which is the same that I have, the 2 chips on the right are different #'s, and he has the resistor, but I do not.
Both ANYX. which is rare in itself.
I would have thought all memcals with the ANYX prom were the same.
Both ANYX. which is rare in itself.
I would have thought all memcals with the ANYX prom were the same.
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