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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > DIY: N54 Injector Coding Via INPA



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      01-10-2013, 11:31 AM   #353
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Post injector adaptation values.
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      01-10-2013, 11:50 AM   #354
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Originally Posted by Tzu View Post
Post injector adaptation values.
Was done on my friends laptop, Ill make sure to get a shot of those as soon as I can get to him again. Will that help me see if one of the injectors is going bad? If so what should I be on the look out for.
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      01-10-2013, 02:11 PM   #355
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It's my theory, maybe some of the INPA gurus can chime in here, but I'd think that one injector with large correctional values would be concerning. I've yet to scan a car that had sevre injector problems and the adaptation values were all +-4% or so.

Before you do that, go read the injector 4 values off your car and compare. The above assumes that they were entered right in the first place and the DME is compensating for an injector on the fritz.
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      01-10-2013, 04:57 PM   #356
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The injector flow rates are predetermined and tested on the bench after its made to test the calibration of each unit. That flow rate value is given to each injector made as there are tolerances between each unit produced. That flow rate number from the INPA screen doesn't change if the injector starts to fail. It's only showing the calibrated flow of the injector which the dme will compensate for it to reach its desired flow.
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      01-11-2013, 09:35 AM   #357
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Originally Posted by cn555ic View Post
The injector flow rates are predetermined and tested on the bench after its made to test the calibration of each unit. That flow rate value is given to each injector made as there are tolerances between each unit produced. That flow rate number from the INPA screen doesn't change if the injector starts to fail. It's only showing the calibrated flow of the injector which the dme will compensate for it to reach its desired flow.
So in other words there's no way for me to tell if I have an injector on the way out. Until it misfires or a code pops?
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      01-11-2013, 11:32 AM   #358
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You sure about that? Just basing off my adapation values (typically 1-2%), INPA would accept a value 1 or 2 points less than what I input. 1% of 2.5=0.025 ie 2.58 was accepted as 2.56. Was just my theory; you know more about INPA than I do so I guess thats put to rest.

Either way, wouldnt a strong adaptation value indicate a failing injector then? (eg, 15% correction?)
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      01-12-2013, 05:53 PM   #359
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Quote:
Originally Posted by Tzu View Post
You sure about that? Just basing off my adapation values (typically 1-2%), INPA would accept a value 1 or 2 points less than what I input. 1% of 2.5=0.025 ie 2.58 was accepted as 2.56. Was just my theory; you know more about INPA than I do so I guess thats put to rest.

Either way, wouldnt a strong adaptation value indicate a failing injector then? (eg, 15% correction?)
So if I see and adaptation value higher then 15%, this could essentially mean the injector is on the way out in theory? An I would of to do this equation based off of what the injectors said input is off the injector it self?
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      01-13-2013, 09:33 PM   #360
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Quote:
Originally Posted by nickkg37s View Post
So if I see and adaptation value higher then 15%, this could essentially mean the injector is on the way out in theory? An I would of to do this equation based off of what the injectors said input is off the injector it self?
An injector can go bad (leaking) and it's adaptation values could be minimal. Also, the DME will change the adaptations on individual injectors based on other parameters such as AFR and knock detection and even engine temp. So while those adaptation values could be used to help troubleshoot at malfunctioning injector, they are not the authoritative decision making parameter.
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      01-27-2013, 01:38 AM   #361
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If my car is a 02/07 build, should I be concerned as to which cable I get? Seems like its the cars after 03/07 that are picky about cables.
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      01-30-2013, 04:08 AM   #362
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Hi guys , I have a working INPA on my laptop but its mostly german , its a later version that I found about a year ago when I needed to delete a transmission fault code (emergency mode) .

Is there a quick fix to get this in english ?
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      01-30-2013, 09:27 PM   #363
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Is there a quick fix to get this in english ?
Nope, not really. You need to run the .IPO files through a disassembler and replace every string from German to its English equivalent.

I was working on translating the MSD80.ipo file to English and my laptop got stolen so I lost all of my software and all of the translation work that I've done so far.

I plan on attempting to translate the MSD80 again but we are talking about 26,000 lines of code to go through, translate and verify that it's working...
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      02-12-2013, 04:35 PM   #364
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does anybody know if i can install three new injectors, NOT calibrate them, and then drive a few miles to my mechanic's shop without harming my car? tia
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      02-12-2013, 04:41 PM   #365
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Quote:
Originally Posted by soldado331 View Post
does anybody know if i can install three new injectors, NOT calibrate them, and then drive a few miles to my mechanic's shop without harming my car? tia
yeah sure
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      02-13-2013, 07:07 AM   #366
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Just stay off boost and you'll be fine.
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      02-13-2013, 08:35 AM   #367
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Quote:
Originally Posted by enrita View Post
yeah sure
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Originally Posted by vasillalov View Post
Just stay off boost and you'll be fine.
thanks guys. it did run much better than before and made it safely to the shop.
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      03-13-2013, 02:50 AM   #368
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Wanted to post this here for any input. Notice the low flow values:



Anything I should worry about? Been troubleshooting a long crank issue for awhile now.
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      07-12-2013, 05:58 AM   #369
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Thanks for this video Vasil!! I had to update my INPA to allow the injector coding, but this helped me swap all 6 injectors DIY!!! Thanks for sharing it!!


http://www.youtube.com/watch?feature...&v=Zb4CdXq-8RE
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      08-02-2013, 08:21 PM   #370
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Hi guys, great thread...lots of awesome info...in a previous post someone said they were able to see the injector info on their '10 E60 535xi, but never tried coding anything. I'm wondering if I could code an '09 E61N using Vas' how to guide?
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      08-03-2013, 06:24 AM   #371
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Quote:
Originally Posted by ukiekid View Post
Hi guys, great thread...lots of awesome info...in a previous post someone said they were able to see the injector info on their '10 E60 535xi, but never tried coding anything. I'm wondering if I could code an '09 E61N using Vas' how to guide?
Should be able to just fine.
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      08-03-2013, 07:22 AM   #372
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Quote:
Originally Posted by ukiekid
Hi guys, great thread...lots of awesome info...in a previous post someone said they were able to see the injector info on their '10 E60 535xi, but never tried coding anything. I'm wondering if I could code an '09 E61N using Vas' how to guide?
Just need the E60 Datenfiles.
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      08-03-2013, 08:09 PM   #373
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Any members in the Cincinnati, Louisville, Lexington area that could help code 3 injectors?
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      08-03-2013, 08:10 PM   #374
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Vas and AWTT335i...thank you for the quick responses
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