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Adjust idle speed

 
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Joschis



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Post11-12-2006, 23:15    Subject: Adjust idle speed Quote

Hello everyone,


I have a question: "How do I change the idle speed on my car using VAG-COM?"
Volkswagen Passat 3B5, V6 TDI 2.5 liter engine, AFB code, manufactured in October 1999.


I've already found something, but I'm not sure if it's the right thing.

Quote:
Select the engine control unit.
Please log in to channels 1, 3, 4, and 5 using the username "12233".
Select adaptation.
Select the corresponding channel and change the value (which can only be changed within certain limits).

Channel 1: Injection amount.
Channel 2: Idle speed.
Channel 3: Air mass.
Channel 4: Injection timing.
Channel 5: Starting amount.
VW Passat V6 TDI 2,5
Bj. 10.1999 / AFB


Translated on 18-07-2026, 13:29.
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chli1976
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Post11-12-2006, 23:49    Subject: Adjust idle speed Quote

With the "Adjust Channel 2" function (option 10), it should work if your control unit supports it.

It works with the 4-cylinder TDI engines, but only within a limited range.


Translated on 18-07-2026, 13:31.
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mserge
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Post12-12-2006, 13:05    Subject: Adjust idle speed Quote

"I've had an AFB (air flow balance) adjustment done, and I've also had an AKE (acceleration control enhancement), but as I said, only within a specific range, approximately plus or minus 50 RPM."
A4 Avant 2,5 tdi 110kw; AFB; BJ2000
4 neue Nockenwellen bei 135 tkm!!
neuer Turbo bei 200.000km
neue ESP bei 216.000km
verkauft mit 225000tkm
jetzt Renault Espace 2,0 dci 172 Initiale BJ2012
Clio 2 RS 170 PS BJ2003


Translated on 18-07-2026, 13:32.
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Ross-Tech-Support
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Post12-12-2006, 13:32    Subject: Adjust idle speed Quote

It is very rare that it's truly necessary to change the idle speed; usually, people only do it to hide problems that they can't solve any other way.


Translated on 18-07-2026, 13:32.
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mserge
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Post12-12-2006, 14:24    Subject: Adjust idle speed Quote

I'm afraid I have to agree with you, but I only did it for testing purposes. icon_smile.gif
A4 Avant 2,5 tdi 110kw; AFB; BJ2000
4 neue Nockenwellen bei 135 tkm!!
neuer Turbo bei 200.000km
neue ESP bei 216.000km
verkauft mit 225000tkm
jetzt Renault Espace 2,0 dci 172 Initiale BJ2012
Clio 2 RS 170 PS BJ2003


Translated on 18-07-2026, 13:32.
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