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  #21  
Old 12-02-2016, 11:09 AM
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Quote:
Originally Posted by YazX5 View Post
Bump for the correct procedure to calibrate suspension via inpa


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What do you mean, how do u get that? Is there any place where I can get full INPA instructions? or at least INPA instructions for EHC. I searched that, but could not find anything.

Sorry, very new with INPA. I sow that there are some instructions on DIS, but I did not found where to get instructions to operate INPA, and there is no place in DIS to reset the counts (I could not find it in any case). Help very welcome!!
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  #22  
Old 12-03-2016, 12:31 AM
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Quote:
Originally Posted by manuelprietou View Post
What do you mean, how do u get that? Is there any place where I can get full INPA instructions? or at least INPA instructions for EHC. I searched that, but could not find anything.

Sorry, very new with INPA. I sow that there are some instructions on DIS, but I did not found where to get instructions to operate INPA, and there is no place in DIS to reset the counts (I could not find it in any case). Help very welcome!!


Yup, lost as well not familiar with inpa at all. Haven't played around with it yet as I don't wanna mess with anything. Looking at write ups and stuff first. If I could get the suspension correctly calibrated that'll be a good first step.


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  #23  
Old 12-03-2016, 08:14 AM
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Guys,
For details on how to calibrate using INPA i suggest you read this thread:
http://www.xoutpost.com/bmw-sav-foru...libration.html
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  #24  
Old 12-03-2016, 08:17 AM
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Originally Posted by manuelprietou View Post
What do you mean, how do u get that? Is there any place where I can get full INPA instructions? or at least INPA instructions for EHC. I searched that, but could not find anything.

Sorry, very new with INPA. I sow that there are some instructions on DIS, but I did not found where to get instructions to operate INPA, and there is no place in DIS to reset the counts (I could not find it in any case). Help very welcome!!
I believe there is a way to set the zero height in DIS, however the counts value in INPA gives you direct insight into the datum values stored in the ride height computer.
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  #25  
Old 12-26-2016, 08:30 AM
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Hi, I been doing the calibration and finally manage to follow the procedure, and reset the Counts to zero and then calibra te, both in production mode. After that, the car adjust after moving. Then, I checked after again the counts values, and they are not anymore at zero, but at least are not negative this time, and all of them, 4 corners are inside the limits, between zero and 1023. Specifically at 634 left front, 466 right front, 403 rear left, 515 at rear right. (before the values where in the same order -707, 450, 362 and 457)

Then, I checked another screen called "calibrate height", in INPA and I see something strange that I will like someone to interpret for me if possible. I attached a picture:

https://postimg.org/image/g1srru45d/

As you see, in front axle left, which is the one that is been always giving me problems, it says that "the height from the ECU" is a negative value... what those values exactly means? anyone? for some reason, the left corner has something always in negative... I wonder why. The sensor is new, by the way.

In the picture you can see as well in the new counts reading that I have seen and posted above in this post (403, 634, 515 and 466). Why the counts change automatically from zero that I set them up to this values? What are the counts exactly then? I am willing to really understand how this thing works... any help?

Last edited by manuelprietou; 12-26-2016 at 10:24 AM. Reason: bad wording
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  #26  
Old 12-26-2016, 10:20 AM
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I'm running into the same issue, specifically front left. The rest of the deviation looks normal, but the front left is always negative. I think that's why mine won't calibrate correctly. I also put a new sensor there as well…


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  #27  
Old 12-26-2016, 10:26 AM
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Do u hae any pic of your reading? I wonder if it is because the values set in the ECU are wrong... I am not even sure if you can set any value on the ECU... someone?
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  #28  
Old 12-26-2016, 06:06 PM
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Quote:
Originally Posted by manuelprietou View Post
Hi, I been doing the calibration and finally manage to follow the procedure, and reset the Counts to zero and then calibra te, both in production mode. After that, the car adjust after moving. Then, I checked after again the counts values, and they are not anymore at zero, but at least are not negative this time, and all of them, 4 corners are inside the limits, between zero and 1023. Specifically at 634 left front, 466 right front, 403 rear left, 515 at rear right. (before the values where in the same order -707, 450, 362 and 457)

Then, I checked another screen called "calibrate height", in INPA and I see something strange that I will like someone to interpret for me if possible. I attached a picture:

https://postimg.org/image/g1srru45d/

As you see, in front axle left, which is the one that is been always giving me problems, it says that "the height from the ECU" is a negative value... what those values exactly means? anyone? for some reason, the left corner has something always in negative... I wonder why. The sensor is new, by the way.

In the picture you can see as well in the new counts reading that I have seen and posted above in this post (403, 634, 515 and 466). Why the counts change automatically from zero that I set them up to this values? What are the counts exactly then? I am willing to really understand how this thing works... any help?
The heights from ECU is simply the voltage from the sensor times by the transfer function to give millimetres.
I don't think the negative value is incorrect, as it simply means that corner is 13cm lower than the zero point. If you are concerned about your sensor health, you can check the actual output voltages in the sensor monitor screen.

Have you taken the system out of production mode? Once you have done so, what are the actual heights that are output from the system?
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  #29  
Old 12-26-2016, 07:51 PM
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yes, 13cm lower than it should be, that is what I tought, but, that picture was taken after the system was out of production mode, and the height of the left front is normal height, not 13cm lower... that is why I think there is still something not completely right... any suggestion?

Regarding the sensor health, I check that screen as well, and everything is whitin the range (inside the green band), voltages in sensor, and the rest of parameters as well, verything in between the ranges, so apparently everything should be ok. for example, voltage in the left front sensos ris 3.10volts, front right, 2.31, left rear 1.85 and right rear 2.27 (range in green os from 0.5 volts up to 4.5)

what is the transfer fuction?
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  #30  
Old 12-26-2016, 09:13 PM
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