ECU upgrade and throttle bodies..

[tartan_rob]

Guys I have seen some people say that the RS4 ECU upgrade does amongst other thing, align throttle bodies. I had a look yesterdy and can only find one throttle body.

Am I going mad or is there some mis-information around?

[simple1]

I believe there are two but have to confess to not having looked but relying on info from techs at dealership. Will have to go have a look...........

[RI_RS4]

From the US launch brochure:

A redesigned intake pipe system with a single throttle butterfly
and double-flow exhaust system with large diameter pipes
specific to this model further boosts the effective power output

[MVW]

There are no throttle bodies on a RS4.

[RI_RS4]

There has to be a throttle body (throttle valve, throttle butterfly), since homogeneous burn mode requires one. Audi mixes terminology. It is sometimes called a throttle body. It is other times called a throttle valve or throttle butterfly. But it does exist in the intake duct just before the intake manifold runner.

Otherwise it is called the Throttle Valve, and is part of the Throttle Valve Control Module, which is actuated by an electric motor controlled by the ECU.

In the manual there is even a part number for a throttle body gasket

079 133 073 C Throttle body gasket

[MVW]

There is a single throttleBODY but not individual throttleBODIES , ie theres not 8! Cars like tvrs have throttlebodies, ie 1 butterfly per cylinder.