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      06-21-2020, 05:28 PM   #1
Kapsona
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PBX installation problem

Hello,

I just get PBX with cuted connectors on wiring.

Now I have only pair of same color wires.

I know those pair of colored wires goes, one to ECU connector and other one to car original wiring. I canít identify which goes where.

Can anyone suggest, is tere any way to identify which wire goes where?

Thanks a lot.
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      06-21-2020, 07:07 PM   #2
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IMO, I wouldn't bother. It doesn't increase power in any way. It jut makes the pedal over sensitive.

There's a wiring chart posted in another thread about the pbx, but I don't remember any of it off the top of my head.
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      06-22-2020, 12:14 AM   #3
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      06-22-2020, 06:11 AM   #4
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Quote:
Originally Posted by hassmaschine View Post
IMO, I wouldn't bother. It doesn't increase power in any way. It jut makes the pedal over sensitive.

There's a wiring chart posted in another thread about the pbx, but I don't remember any of it off the top of my head.
Aha understand.

So In case if I install PBX, than change 1IM to 3IM and flash 328 to 330. Can I use both of them together? I mean PBX + 3IM together.

I searched a lot but cant find that post regarding wiring of PBX can you post link if you have.

Thank you.
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      06-22-2020, 10:08 AM   #5
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I found it, there's a link to the original wiring diagram too, not sure if it still works:
https://www.e90post.com/forums/showt...3#post20734803

also relevant:
https://www.e90post.com/forums/showthread.php?t=1481370
https://www.e90post.com/forums/showthread.php?t=1571010

I do not recommend it with the Bimmerlabs 330i flash. The only other "tuning" ability it has (beside pedal input) is making the engine run rich at WOT - but on the 330i tune, that will not help anything, the AFR is already rich enough at WOT. In fact, with the stock cat overheat protection and above 6000rpm, it's actually *too* rich. Basically I found on the dyno, that adding fuel did not help anything, I just lost power beyond the stock 330i's ~13.3:1 AFR.

Besides that, the richer AFR is likely to be adapted out after a few hundred miles anyway.
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      06-22-2020, 11:48 AM   #6
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Quote:
Originally Posted by hassmaschine View Post
I found it, there's a link to the original wiring diagram too, not sure if it still works:
https://www.e90post.com/forums/showt...3#post20734803

also relevant:
https://www.e90post.com/forums/showthread.php?t=1481370
https://www.e90post.com/forums/showthread.php?t=1571010

I do not recommend it with the Bimmerlabs 330i flash. The only other "tuning" ability it has (beside pedal input) is making the engine run rich at WOT - but on the 330i tune, that will not help anything, the AFR is already rich enough at WOT. In fact, with the stock cat overheat protection and above 6000rpm, it's actually *too* rich. Basically I found on the dyno, that adding fuel did not help anything, I just lost power beyond the stock 330i's ~13.3:1 AFR.

Besides that, the richer AFR is likely to be adapted out after a few hundred miles anyway.

Many thanks to you friend
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      06-23-2020, 12:46 PM   #7
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Guys, I have one final question regarding PBX.

I decided to go with 3IM without PBX.

One of my friends own 128i I know he trying to buy PBX long time, but without luck. I wondering does my 328i PBX same as 128iís PBX? Does it woks same way for 128i?

Thanks.
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      06-23-2020, 01:24 PM   #8
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yeah it will work the same, but you would want to verify the pinouts with the TIS, the ones I posted were for MSV70. I think they are the same but some may have moved.

newtis.info
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      06-23-2020, 02:17 PM   #9
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Quote:
Originally Posted by hassmaschine View Post
yeah it will work the same, but you would want to verify the pinouts with the TIS, the ones I posted were for MSV70. I think they are the same but some may have moved.

newtis.info
Yap, 128i has msv80.

I will check on TIS site if I can understand things

Thank you very much
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      07-04-2020, 01:32 AM   #10
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Hey guys.

Finally we find wiring diagram for PBX, restore cut wires and install it on my friends 128i.

Filling of torque dramatically increased on 3 MAP.

He drives car with 3dr MAP without switching it because he loved it much. But yesterday we experienced strange problem. After engine start car jerked 2-3 times I thought it was mess with GM transmission, but when I pull Gas Pedal engine light comes in. Car become uncontrolled, like limp mode but it not moves at all when Speed was in D and gas pedal to the floor car idling, also engine works great while engine light without rough idle.

So we call to service and take car to technicians. Car was off around 1 hour. While waiting we try our lack and car start without engine light, everything works great and it runs without problem.

Technician check error stored error codes.

2 was Oxygen lambda error, like petrol/air mixture not correct combination.

1 was DME to pedal DISA signal 2 error.

What will be your suggestion about those errors?
Can it cause some serious problems in future?
Should we remove PBX and forget about it?

Thanks.
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      07-04-2020, 06:50 AM   #11
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Quote:
Originally Posted by Kapsona View Post
Hey guys.

Finally we find wiring diagram for PBX, restore cut wires and install it on my friends 128i.

Filling of torque dramatically increased on 3 MAP.

He drives car with 3dr MAP without switching it because he loved it much. But yesterday we experienced strange problem. After engine start car jerked 2-3 times I thought it was mess with GM transmission, but when I pull Gas Pedal engine light comes in. Car become uncontrolled, like limp mode but it not moves at all when Speed was in D and gas pedal to the floor car idling, also engine works great while engine light without rough idle.

So we call to service and take car to technicians. Car was off around 1 hour. While waiting we try our lack and car start without engine light, everything works great and it runs without problem.

Technician check error stored error codes.

2 was Oxygen lambda error, like petrol/air mixture not correct combination.

1 was DME to pedal DISA signal 2 error.

What will be your suggestion about those errors?
Can it cause some serious problems in future?
Should we remove PBX and forget about it?

Thanks.
My guess is the connections you made installing the PBC are bad or the PBX itself is bad. As these things are junk anyways just get rid of it.
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      07-04-2020, 07:27 AM   #12
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Quote:
Originally Posted by rjahl View Post
My guess is the connections you made installing the PBC are bad or the PBX itself is bad. As these things are junk anyways just get rid of it.
Connections I made, I think they are correct because I disassembled other PBX harness and do it identically.

To install PBX on DME I used this tutorial :

https://youtu.be/oMXfoc3CH-U

Based on comments no one saying is it correct or incorrect.

If someone know and maybe have some other documentation please shear it with me.

Thanks.

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      07-04-2020, 07:36 AM   #13
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Quote:
Originally Posted by Kapsona View Post
Quote:
Originally Posted by rjahl View Post
My guess is the connections you made installing the PBC are bad or the PBX itself is bad. As these things are junk anyways just get rid of it.
Connections I made, I think they are correct because I disassembled other PBX harness and do it identically.

To install PBX on DME I used this tutorial :

https://youtu.be/oMXfoc3CH-U

Based on comments no one saying is it correct or incorrect.

If someone know and maybe have some other documentation please shear it with me.

Thanks.

I did not mean miss wired, rather bad with high resistance or intermittent contact.

The PBX hi jacks signals from the O2 sensors and throttle and modified them. No look at your fault codes👀
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      07-04-2020, 09:31 AM   #14
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Quote:
Originally Posted by rjahl View Post
I did not mean miss wired, rather bad with high resistance or intermittent contact.

The PBX hi jacks signals from the O2 sensors and throttle and modified them. No look at your fault codes👀
Understand, thanks for idea.

Anybody maybe some other suggestions?
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      07-06-2020, 08:26 PM   #15
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I ran one for 3yrs without one single code. There are tunes out there now that can elevate the dreadful throttle response. This was when AA was about all you could get.
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      07-07-2020, 09:39 AM   #16
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Quote:
Originally Posted by JuniorB View Post
I ran one for 3yrs without one single code. There are tunes out there now that can elevate the dreadful throttle response. This was when AA was about all you could get.
Problem is that Iím new in tuning. All what I found is PBX and 3IM modification.

Can you suggest me something to do with my friends 128i to gain more HP.

Thanks.
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      07-07-2020, 10:28 AM   #17
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3 stage swap is the best way. Seriously, the PBX is pointless..

is your friend's car a US import?
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      07-07-2020, 03:01 PM   #18
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Quote:
Originally Posted by hassmaschine View Post
3 stage swap is the best way. Seriously, the PBX is pointless..

is your friend's car a US import?
Yes car US model. N52N engine 128i with GM Trans.

Can we also configure pedal disa response increase while flashing 130i s firmware?
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      07-07-2020, 09:41 PM   #19
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With the file on the site, no - but I'd be willing to make a file for the cost of a pbx, and it will actually do something.
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      07-08-2020, 01:42 AM   #20
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Quote:
Originally Posted by hassmaschine View Post
With the file on the site, no - but I'd be willing to make a file for the cost of a pbx, and it will actually do something.
So it will be upgrade for 128 to 130 with 3IM and also with modified throttle response like pbx?

If I understand correctly, how much it costs?
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