RPM dips - question
Thread Starter
Race Director
Joined: Apr 2007
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Likes: 1,656
From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021
RPM dips - question
I have an '07 A6 with about 26,000 miles and has had a lot of stop-and-go city driving.
Sometimes while waiting at the light (in gear), especially with the air-conditioning on, the RPMs will drop momentarily, almost to the point where it feels like the car might stall. Normally my car idles at 550 in gear.
I was wondering if I might have carbon in the throttle body and should I get this cleaned (or can I do myself)?
Any thoughts will be helpful.
Sometimes while waiting at the light (in gear), especially with the air-conditioning on, the RPMs will drop momentarily, almost to the point where it feels like the car might stall. Normally my car idles at 550 in gear.
I was wondering if I might have carbon in the throttle body and should I get this cleaned (or can I do myself)?
Any thoughts will be helpful.
Safety Car
Joined: Dec 2006
Posts: 4,642
Likes: 9
From: Dalllas/Ft Worth Area TX
Under warranty?
I have an '07 A6 with about 26,000 miles and has had a lot of stop-and-go city driving.
Sometimes while waiting at the light (in gear), especially with the air-conditioning on, the RPMs will drop momentarily, almost to the point where it feels like the car might stall. Normally my car idles at 550 in gear.
I was wondering if I might have carbon in the throttle body and should I get this cleaned (or can I do myself)?
Any thoughts will be helpful.
Sometimes while waiting at the light (in gear), especially with the air-conditioning on, the RPMs will drop momentarily, almost to the point where it feels like the car might stall. Normally my car idles at 550 in gear.
I was wondering if I might have carbon in the throttle body and should I get this cleaned (or can I do myself)?
Any thoughts will be helpful.
Thread Starter
Race Director
Joined: Apr 2007
Posts: 16,025
Likes: 1,656
From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021
It is under warranty but my experience with dealers is that they will not entertain any such problems. If indeed it does need the throttle body cleaned they will charge an arm-and-a-leg for it calling it routine maintenance.
Le Mans Master
Joined: Dec 2005
Posts: 6,993
Likes: 1
From: Vail, Arizona
Get a can of throttle-body cleaner at your local auto parts store and see if it helps. If not, take it in.
Could perhaps be a dirty MAF too..........
Could perhaps be a dirty MAF too..........
Last edited by BlackZ51Vett; Sep 14, 2009 at 07:53 AM.
Safety Car
Joined: Dec 2006
Posts: 4,642
Likes: 9
From: Dalllas/Ft Worth Area TX
Help!
Last edited by 2006c6keller; Sep 15, 2009 at 05:49 PM.
Thread Starter
Race Director
Joined: Apr 2007
Posts: 16,025
Likes: 1,656
From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021
Burning Brakes
Joined: Sep 2007
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From: Long Island New York
MASS AIR FLOW sensor
The Air Flow Sensor or Mass Airflow Sensor (MAF) is one of the components of an electronic fuel injection system and is found in many of modern vehicles. The Mass Air Flow sensor is usually installed inside the intake air duct between the air filter and the engine. The Mass Air Flow sensor is used to measure the amount of air entering the engine. This measurement is used by the engine computer or ECM to calculate proper amount of fuel injected into the cylinders in order to provide optimum combustion and low emissions.
The Air Flow Sensor or Mass Airflow Sensor (MAF) is one of the components of an electronic fuel injection system and is found in many of modern vehicles. The Mass Air Flow sensor is usually installed inside the intake air duct between the air filter and the engine. The Mass Air Flow sensor is used to measure the amount of air entering the engine. This measurement is used by the engine computer or ECM to calculate proper amount of fuel injected into the cylinders in order to provide optimum combustion and low emissions.
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Safety Car
Joined: Dec 2006
Posts: 4,642
Likes: 9
From: Dalllas/Ft Worth Area TX
You nailed it, thanks!
Last edited by 2006c6keller; Sep 16, 2009 at 02:33 PM.
Thread Starter
Race Director
Joined: Apr 2007
Posts: 16,025
Likes: 1,656
From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021
