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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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  #1  
Old 03-22-2014, 05:26 AM
Vladi Vladi is offline
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Location: Switzerland
 
Join Date: Jan 2012
Posts: 107
Mein Auto: Z4 M (2007)
Idling/EMS problems Z4M

Hi all,

Today, on starting the car, the EMS, ASC and the tyre pressure lights went off. The idling oscillated from 900 to 1200 rpm and the car went in "limp" mode. On restarting twice the EMS and tyre pressure finally cleared off, the rpms stabilized but the "check engine" light is still on. Scanned the car with the INPA and there's what it said:

--------------------------------------------------------------------------------------------------

$FehlerOrtNr: 11529
$FehlerOrtText: 2D09 Throttle valve
610A0A2D09A414060421990311621EAE1F017C21990069AC00 21990087A700880002280101007A807F807D000100141700
Error: 3(10) Nr: 11529 2D09 Throttle valve frequency: 6
type of error: (107 ) air intake not correct
readiness flag: (16 ) Test conditions fulfilled
error-statur: (33 ) Error not present now, but already stored
MIL - Status: (49) Error would cause a warning lamp to light up
P-Code: P1417 Throttle Control Incorrect Air Supply F_LZ: 40
environment-text / entry at 68808 km km(n.) 68808 km km(2.) 68808 km km(1.)
Engine speed 0.00 rpm 0.00 rpm 96.00 rpm
Intake air temperature 53.25 C 30.75 C 25.50 C
Engine temperature 77.25 C 81.00 C 82.50 C
status engine controller ENG_STOP ENG_STOP RUN_ENG
-------------------------------------------------------------------------------------------------

To put it short, Error P1417 2D09 Throttle valve. Does anybody have any idea what might it be?

Many thanks in advance!

Cheers,
Vladi
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  #2  
Old 03-22-2014, 09:54 AM
Vladi Vladi is offline
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Location: Switzerland
 
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Posts: 107
Mein Auto: Z4 M (2007)
Sorry, my bad! I mean the EML and DSC lights went off, not "EMS and ASC"
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  #3  
Old 03-23-2014, 05:23 AM
Vladi Vladi is offline
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Location: Switzerland
 
Join Date: Jan 2012
Posts: 107
Mein Auto: Z4 M (2007)
Problem solved. Ran a reset of the throttles (10 s key on position 2, 10 s key on position 0) and the error cleared off:

__________________________________________________ _________

$FehlerOrtNr: 11529
$FehlerOrtText: 2D09 Throttle valve
570A2D09A4141417062821990362AE0121990069AC00219900 87A700
Error: 3(10) Nr: 11529 2D09 Throttle valve frequency: 6
type of error: 4 (107 ) air intake not correct
readiness flag: (16 ) Test conditions fulfilled
error-statur: (33 ) Error not present now, but already stored
MIL - Status: (49) Error would cause a warning lamp to light up
P-Code: P1417 Throttle Control Incorrect Air Supply F_LZ: 40
environment-text / entry at 68808 km(n.) 68808 km(2.) 68808 km(1.)
Engine speed 0.00 rpm 0.00 rpm 96.00 rpm
Intake air temperature 53.25 C 30.75 C 25.50 C
Engine temperature 77.25 C 81.00 C 82.50 C
status engine controller ENG_STOP ENG_STOP RUN_ENG
__________________________________________________ _________




Not sure everything is roses and tulips, though - if such an error occurs once, I would expect it to occur again sooner or later.
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  #4  
Old 03-27-2014, 11:26 AM
elerner61 elerner61 is offline
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Location: Mount Kisco, NY
 
Join Date: Feb 2011
Posts: 28
Mein Auto: '07 Z4M Roadster
Do you have any documentation on your "code clearing process"? I've never come across that before. Thx!
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  #5  
Old 03-28-2014, 02:08 AM
Vladi Vladi is offline
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Location: Switzerland
 
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Mein Auto: Z4 M (2007)
Hi,

I am not sure I understand the question. There are online sources where the BMW-specific meanings of the P-codes (for instance P1417) as well as the hex-codes (for instance 2D09) are described. If that's what you need, let me know, I can make a little search for you.
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  #6  
Old 03-28-2014, 07:01 AM
elerner61 elerner61 is offline
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Location: Mount Kisco, NY
 
Join Date: Feb 2011
Posts: 28
Mein Auto: '07 Z4M Roadster
I was referring to "Ran a reset of the throttles (10 s key on position 2, 10 s key on position 0) and the error cleared off"

This sounds like you were able to clear the codes not with a diagnostic tool/software but by keeping the ignition key on positions 2 and 0 for a certain perod of time. Is that how you cleared the codes?
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  #7  
Old 03-28-2014, 08:07 AM
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shipkiller shipkiller is offline
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Location: Virginia Beach, VA
 
Join Date: Nov 2007
Posts: 910
Mein Auto: Me
BMW's use an adaptive throttle which learns your driving style. If you always drive easy, then the throttle will then bias itself for that kind of driving, so when you want to 'get on it' the car will not perform as quickly as you remember. It does not kill top end, but it's 'throttle curve' is larger.
If you always drive like your 'hair is on fire' then the throttle curve is much less sharp (edit: more linear) and the throttle responds more quickly.

You can reset this 'learned curve' by placing the key in Pos 2 (ignition ON, car not running) for 10-15 seconds, then turn the key off for 10-15 seconds and then start the car. Several full throttle accelerations to 7K or so will do the same thing.
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How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
Slavery was legal; apartheid was legal; Stalinist, Nazi, and Maoist purges were legal. Clearly, the fact of legality does not justify these crimes. Legality, alone, cannot be the talisman of morel people. - Walter E. Williams

Last edited by shipkiller; 03-29-2014 at 03:05 PM.
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  #8  
Old 03-28-2014, 11:10 AM
elerner61 elerner61 is offline
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Location: Mount Kisco, NY
 
Join Date: Feb 2011
Posts: 28
Mein Auto: '07 Z4M Roadster
Thanks for the explanation. Does that also apply while in Sport mode? Or is that a fixed throttle map.
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  #9  
Old 03-28-2014, 11:25 AM
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shipkiller shipkiller is offline
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Location: Virginia Beach, VA
 
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Posts: 910
Mein Auto: Me
Does not apply to Sport Mode.
__________________
.
.
How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
Slavery was legal; apartheid was legal; Stalinist, Nazi, and Maoist purges were legal. Clearly, the fact of legality does not justify these crimes. Legality, alone, cannot be the talisman of morel people. - Walter E. Williams
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  #10  
Old 03-29-2014, 09:07 AM
Vladi Vladi is offline
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Location: Switzerland
 
Join Date: Jan 2012
Posts: 107
Mein Auto: Z4 M (2007)
Well, after the post of Shipkiller I have nothing to add
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