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      01-19-2018, 03:32 PM   #1
Blueeyesredpanda
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Transmission updated, now shifts at 6000rpm????

I recently updated the transmission software on my 328xi after I changed the transmission fluid and filter. After the update and the adaptation reset, 1st gear shifts at 6000rpm and 2nd gear shifts at 6500 rpm and so on. Original redline was about 6800-6900.

Transmission: GS1912 (GM transmission)

How do I know WHICH ZB-number is for E90?
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      01-19-2018, 06:58 PM   #2
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What was your original ZB, and which ZB did you flash?
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      01-20-2018, 03:28 PM   #3
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Quote:
Originally Posted by RocketSurgeon View Post
What was your original ZB, and which ZB did you flash?
Made a terrible mistake that i didn't write down the previous ZB.
The 6000rpm ZB is 7634252
I tired to flash it to anoter ZB but i am not sure if I did it the right away. It keeps saying "From 7634252 to current 7634252".

Assembly identification Number: 7634252
Hardware number: 7614313

1st attempt:

1. F1 Comfort mode
2. F1 Enter ZUSB "7634252", Choose assembly identification number/integration position, ECU family "GM1912" ZB number "7634252"
3. F2 Choose ZUSB, ECU family "GM1912" ZB number "7634254"
4. Update ZUSB "GM1912"
5. Enter Vin
6. F8 Done
7. F3 Prog. ZB-Update
8. From 7634252 to current 7634252

2nd attempt:
1. F1 Comfort mode
2. F1 Enter ZUSB "7634252", Choose assembly identification number/integration position, ECU family "GM1912" ZB number "7634254"
3. Update ZUSB "GM1912"
4. Enter Vin
5. F8 Done
6. F3 Prog. ZB-Update
8. From 7634252 to current 7634252

3rd Attempt:
1. F1 Comfort mode
2. F1 Enter ZUSB "7634254", Choose assembly identification number/integration position, ECU family "GM1912" ZB number "7634254"
3. Update ZUSB "GM1912"
4. Enter Vin
5. F8 Done
6. F3 Prog. ZB-Update
8. From 7634252 to current 7634252
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      01-21-2018, 01:52 PM   #4
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      01-21-2018, 01:59 PM   #5
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Quote:
Originally Posted by Blueeyesredpanda View Post
Bump
Post your VIN and someone might show pitty and help
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      01-21-2018, 02:33 PM   #6
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Quote:
Originally Posted by rjahl View Post
Post your VIN and someone might show pitty and help
WBAPK7C56AA457641
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      01-21-2018, 07:02 PM   #7
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Quote:
Originally Posted by Blueeyesredpanda View Post
WBAPK7C56AA457641
This is as far as I could get tonight.

Looking at the Kmm_ATSH.txt file there are four Auto gearbox ZB numbers for the PK73.

7584037--GKE 215
7618583--GKE 215

7585087--GM1912
7634248--GM1212



Assuming yours is a GM as you stated, it's one of the later two. I'm not good enough to know which.
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      01-21-2018, 11:10 PM   #8
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Quote:
Originally Posted by rjahl View Post
This is as far as I could get tonight.

Looking at the Kmm_ATSH.txt file there are four Auto gearbox ZB numbers for the PK73.

7584037--GKE 215
7618583--GKE 215

7585087--GM1912
7634248--GM1212



Assuming yours is a GM as you stated, it's one of the later two. I'm not good enough to know which.
I will give it a shot tomorrow. But let say I flash it to the 7634248.
Current: 7634252

Is this the correct steps?

1. F1 Comfort mode
2. F1 Enter ZUSB "7634252", Choose assembly identification number/integration position, ECU family "GM1912" ZB number "7634248"
3. Update ZUSB "GM1912"
4. Enter Vin
5. F8 Done
6. F3 Prog. ZB-Update
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      01-22-2018, 08:36 PM   #9
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Quote:
Originally Posted by Blueeyesredpanda View Post
Quote:
Originally Posted by rjahl View Post
This is as far as I could get tonight.

Looking at the Kmm_ATSH.txt file there are four Auto gearbox ZB numbers for the PK73.

7584037--GKE 215
7618583--GKE 215

7585087--GM1912
7634248--GM1212



Assuming yours is a GM as you stated, it's one of the later two. I'm not good enough to know which.
I will give it a shot tomorrow. But let say I flash it to the 7634248.
Current: 7634252

Is this the correct steps?

1. F1 Comfort mode
2. F1 Enter ZUSB "7634252", Choose assembly identification number/integration position, ECU family "GM1912" ZB number "7634248"
3. Update ZUSB "GM1912"
4. Enter Vin
5. F8 Done
6. F3 Prog. ZB-Update
Comfort mode
Choose ZUSB
Choose the ZB you want
Enter Vin
Done
Program
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      01-22-2018, 08:46 PM   #10
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Will this update fix the typical jerky shifting behavior of a 328xi? Mine is bone dry stock and I do not like the way it shifts.

What software you you using to update the transmission software? ISTA/P? Or something simpler, like INPA?

I also read something about resetting adaptations. Will that work or at least make things somewhat better?

What about removing the clutch release valve? It might make shifting faster (but perhaps making it a bit more jerky as well as a result.) Has anybody done that?
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      01-22-2018, 08:58 PM   #11
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Interesting... when I changed my fluid back in 2013 I did not update my transmission software or at least did not know I had to do one. All went fine but recently I have a minor jerky shifting when going from 1st to 2nd only. Mine is ZF though...
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      01-22-2018, 09:06 PM   #12
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Quote:
Originally Posted by GoRomeo View Post
Interesting... when I changed my fluid back in 2013 I did not update my transmission software or at least did not know I had to do one. All went fine but recently I have a minor jerky shifting when going from 1st to 2nd only. Mine is ZF though...
Don't let your fluid get older than 60,000 miles and only do adaption resets on a warm transmission. Try to follow the ZF adaption procedure. Several copies are available on-line.


The ZF programs did not change that much between versions. If the trans is bumping more than usual, it's hardware related. The ZF6HP19 is pretty tough but the fluid needs to be changed on a regular bases.
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      01-22-2018, 09:07 PM   #13
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Quote:
Originally Posted by BIMGE View Post
Comfort mode
Choose ZUSB
Choose the ZB you want
Enter Vin
Done
Program
Sounds about right. I did so much flashing that I always had the UIF turned off and therefor did not need to flash the VIN.

Last edited by rjahl; 01-23-2018 at 02:16 PM.
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      01-24-2018, 01:51 AM   #14
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Quote:
Originally Posted by rjahl View Post
Sounds about right. I did so much flashing that I always had the UIF turned off and therefor did not need to flash the VIN.
How to turn off the UIF?
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      01-24-2018, 01:52 AM   #15
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Quote:
Originally Posted by rjahl View Post
This is as far as I could get tonight.

Looking at the Kmm_ATSH.txt file there are four Auto gearbox ZB numbers for the PK73.

7584037--GKE 215
7618583--GKE 215

7585087--GM1912
7634248--GM1212



Assuming yours is a GM as you stated, it's one of the later two. I'm not good enough to know which.
What does PK73 means?
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      01-24-2018, 05:27 AM   #16
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Quote:
Originally Posted by Blueeyesredpanda View Post
Quote:
Originally Posted by rjahl View Post
This is as far as I could get tonight.

Looking at the Kmm_ATSH.txt file there are four Auto gearbox ZB numbers for the PK73.

7584037--GKE 215
7618583--GKE 215

7585087--GM1912
7634248--GM1212



Assuming yours is a GM as you stated, it's one of the later two. I'm not good enough to know which.
What does PK73 means?
Your chassis code
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