Why you should use vag-com to re-set the Throttle body

[LEE69]

This is what happens when aligned with a vag tool like vag-com

http://www.youtube.com/watch?v=DsI8tKgfmFs



This is what happens when you leave the key in the ignition

http://www.youtube.com/watch?v=xB5DIuuEC_8



The top video actually does an alignment, and the figures change for the vag-com screen like below:

http://www.youtube.com/watch?v=HMU_riJ00zo

as can be seen, the start figures are different to the end figures, because the throttle body is actually being measure while being aligned.

Taken from http://uk-mkivs.net/forums/AddPost.aspx?ReplyToPostID=1900058&Quote=True

Select Control Module

Select "01" Engine

Select "04" Basic Settings

In the first group box type "060" and hit GO!

You should see the display below and watch the "Step count" step through until it reaches 8.

 

[Jimski]

I always get noticeable results from a vag com reset, mainly MPG.

Well worth doing now and then.


Jimski

 

[DPJ]

So just to reinforce the point,

YOU CAN'T DO A THROTTLE BODY ALIGNMENT WITHOUT USING VAGCOM.

 

[LEE69]

Was a post of yours i recall Dave, so went and found the vids.

 

[Seat Gooner]

hmm good job i got vag-com just brought a gasket to do this soon to

 

[Mr Roboto]

I heard that the throttle body resets itself after a few miles any way is that true?

 

[Jimski]

IIRC its not a reset, more of an adjustment, to obviously "re-look" at your driving style, fuel type, temperature etc.


Jimski

 

[adam cupra 20vt]

I'm glad this has been posted as I asked last couple of weeks and some people seem to think you can do it without....very helpfull post.

Perhaps this could be a sticky?

 

[dizzydiesel]

At the risk of sounding like a total idiot.....can you realign throttle body on a TDI using vag-com?

 

[Willie]

At the risk of sounding like a total idiot.....can you realign throttle body on a TDI using vag-com?

Do you have a throttle body on your car?

 

[Muttley]

dizzydiesel wrote

At the risk of sounding like a total idiot.....

You have succeeded . . .

can you realign throttle body on a TDI using vag-com?

Diesels
Have
NO
THROTTLE
!




In case you're still wondering, that means no.

 

[dizzydiesel]

Ok, the Ross-tech makes sence then.
I wasnt sure if TDI had a throttle body......probably getting confused with the EGR and manifold.

I hold my hand up - idiot.

 

[DJ-LIAMC]

Ok so your not supposed to do a TBA with the key in the ingnition?

 

[adam cupra 20vt]

From reading the bottom link in the first post it seems sometimes the ECU does it itself?

http://www.waheedkhan.com/vagcom/vagcomthrottlebodyadapt.htm

"Throttle body adaptation is a reset of the throttle body flap to align it to the accelerator pedal as the TT is Drive-by-wire.

Its recommended to be done at a service and then always if the battery were to be disconnected, there are 2 ways to do it.
1. Switch on the ignition and leave it on for 30 seconds.
(You should hear some clicking in the engine bay, always after a battery disconnect)
This is not guaranteed to happen as the ecu decides if it needs doing,
if you disconnect/reconnect the battery first then this method will definitely work.

or

2.Use VAG-COM procedure as described below"


I wonder how the ECU decides if its going to do it or not? also it says "if you disconnect/reconnect the battery first then this method will definitely work."

Any thoughts on this or am I missunderstanding?

 

[DPJ]

...........
1. Switch on the ignition and leave it on for 30 seconds.
(You should hear some clicking in the engine bay, always after a battery disconnect)
This is not guaranteed to happen as the ecu decides if it needs doing,
if you disconnect/reconnect the battery first then this method will definitely work.

.............

No, No, No, No.......

 

[adam cupra 20vt]

I guess thats wong advice in the link then?

 

[DPJ]

Clicky

 

[adam cupra 20vt]

Ahh rite guess I've been misunderstanding then

 

[DPJ]

That's the misinformation we (and this thread) are trying to dispel.....

 

[LEE69]

Edited the first post to save the confusion