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Operating AXR without LMM

 
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Klausel
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Post10-07-2010, 17:47    Subject: Operating AXR without LMM Quote

AXR, manufactured in 2006, in Polo 9N3:
"Navigation with the LMM disconnected revealed that the rudder limiter
does not get influenced. Say: The car drives according to data and feels.
full performance. Obviously, the soot reduction is achieved through LD + RPM.
investigated.

After 10 minutes of driving, there was only one single error entry, which concerned the
missing LMM signal, no further entries due to any reason
emission-related stories.

Although in this scenario, the (replacement) actual value of the air mass is 539 mg/stroke
when the load is low, it is far above the LMM target, the AGR clearly does not
on - the key-to-value ratio is fixed at 4.8%.

Why is it like this?
Is it, for example, that the LMM deactivation is a proven method for the AXR, and also for the AGR?
to disable?
Or does the check engine light or some other
Problem?

Hello Klaus


Translated on 03-07-2026, 15:19.
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vwSchrauber
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Post12-07-2010, 12:16    Subject: Operating AXR without LMM Translating...

[Translating...]

Ja, es gibt die Möglichkeit die Trübung über den Ladedruck laufen zu lassen. Ich meine soetwas schon mal an einer EDC15U vom 96/130 7M gesehn zu haben.

Wies beim AXR, und deinem Softwarestand aussieht weiß ich leider nicht.


AGR: das STG macht sie deswegen nicht auf, weil es nicht weiß wo der tatsächliche Luftmassenwert liegt. Es können genausogut auch nur 200 mg/Takt sein. Öffnet da die AGR auch noch, dann geht der Motor im LL aus.
selber schrauben - statt Werkstattpfusch
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chli1976
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Post12-07-2010, 12:19    Subject: Operating AXR without LMM Translating...

[Translating...]

Habe es bis jetzt nur bei EDC16 STG gesehen, da gibt es sowohl ein Kennfeld für die Mengenbegrenzung über den LMM als auch über den Ladedruck
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ulf
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Post12-07-2010, 13:18    Subject: Operating AXR without LMM Translating...

[Translating...]

vwSchrauber wrote:
Ja, es gibt die Möglichkeit die Trübung über den Ladedruck laufen zu lassen. Ich meine soetwas schon mal an einer EDC15U vom 96/130 7M gesehn zu haben.
Der EU4-96kW PD (BLT) trübt auch per LD, ebenso der ASZ und BTB (110kW) im Sharan, und (IIRC) mindesten ein 3Zyl-TDI in der Polo 9N-Plattform.


Quote:
Wies beim AXR, und deinem Softwarestand aussieht weiß ich leider nicht.
Ob alle AXR per LD trüben weiß ich nicht, aber zumindest teilweise ist das so.
Gruß Ulf
_________

MG4 Electric
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Post12-07-2010, 14:25    Subject: Re: Operating AXR without LMM Quote


Is it, for example, that the LMM deactivation is a proven method for the AXR, and also for the AGR?
to disable?


No.


Or does the check engine light or some other
Problem ?

Yes!

You will eventually receive an implausible LMM signal. At the latest, if the AGR (Air-Gas Ratio) needs to be displayed for an extended period, but the air mass does not change.


Translated on 03-07-2026, 15:19.
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ulf
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Post25-06-2013, 6:56    Subject: Re: Operating AXR without LMM Quote

Klausel wrote:
Is it, therefore, a proven method to disable the AGR using LMM deactivation in the AXR?
Due to a similar topic in another forum, I am currently interested in how the AXR (and BLT?) will react if you disconnect and close the hose from the AGR canister.
One possible way would be for the MSG to close the DK to such an extent that the LuMa target value is achieved. Without the addition of exhaust gas, the compression would suffer, which could potentially lead to new rough running problems.
This should, in turn, be reflected in the MWB3.
So, hat schon jemand den MWB3 eines AXR / BLT mit nur hardwareseitig deaktivierter AGR aufgezeichnet?
Gruß Ulf
_________

MG4 Electric


Translated on 03-07-2026, 15:19.
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