Idle Reving after cleaning Throttle Body APQ Engine

[Neil1]

Hi I have a 98' Seat Ibiza 1.4 apq engine.


Recently I took the throttle body out and gave it a clean. Aligned it with vag-com.

Let the engine run for about 5mins after doing this, then took it for a spin.

Seemed to drive fine. However on idle it revs quite high then goes back to normal again.

Bit confused what it could be - will I need a new throttle body? Some peope have mentioned an Idle Control Valve and this could be stuck. Not sure where this is located on the throttle body. I was wondering if it can be cleaned or not, if it is that?

 

[Neil1]

bump!

 

[ibiza_95]

you could have a vacuum leak, like not attached all the pipes back properly, and or split a hose when taking it off

 

[M1KEH]

Spray some wd40 around all the pipes you disturbed and see if that makes the revs go up.

 

[Neil1]

Thanks for the advice. Had a look round today. Took the airbox off. Sprayed Wd40 around the pipes - nothing. Then realized that there was a pipe going to the bottom of the airbox I had not connected.
So I thought that must have been the problem. Gave it a drive round the block and still high reving on idle. It then goes back to normal after about 10-15seconds.
Got Vag-com out and gave it another re-align as I had move the butterfly a couple of times.
Will go out in it again later but think I have still got the same problem.

So maybe there is another vac pipe i havnt spotted or a split somewhere else.
Or the idle control valve?

 

[Big-Pete]

Thanks for the advice. Had a look round today. Took the airbox off. Sprayed Wd40 around the pipes - nothing. Then realized that there was a pipe going to the bottom of the airbox I had not connected.
So I thought that must have been the problem. Gave it a drive round the block and still high reving on idle. It then goes back to normal after about 10-15seconds.
Got Vag-com out and gave it another re-align as I had move the butterfly a couple of times.
Will go out in it again later but think I have still got the same problem.

So maybe there is another vac pipe i havnt spotted or a split somewhere else.
Or the idle control valve?

any chance of a step by step/how to realign the throttle body via vag com? pleasse

 

[Neil1]

yep you need, here is the screens you need to click on;

Go into fault codes make sure it is clear;

[Select]
[01 - Engine]
[Measuring Blocks - 08]
type in 098
[Go!]
[Switch to basic settings]

you will then see ADP OK change to ADP run in right hand corner.

Hope that helps.

I am still having the same problems with high reving on idle has anyone got anymore ideas, thanks

 

[ather`s]

yep you need, here is the screens you need to click on;

Go into fault codes make sure it is clear;

[Select]
[01 - Engine]
[Measuring Blocks - 08]
type in 098
[Go!]
[Switch to basic settings]

you will then see ADP OK change to ADP run in right hand corner.

Hope that helps.

I am still having the same problems with high reving on idle has anyone got anymore ideas, thanks

is this the same procedure on all engine codes as pete has a 2.0l 16v and you obviously have an APQ??

 

[Neil1]

This was the link I got instructions on, i just tried on the ibiza and it worked!
http://www.ross-tech.com/vag-com/cars/throttlebody.html

and more ideas with my idle reving problem?

 

[Finan]

Hauld on..
you can re-allign the idle control valve?
How?

Soz.. thought u had to do Physical work to the engine to re-allign it?

 

[EnGbudd]

Hauld on..
you can re-allign the idle control valve?
How?

Soz.. thought u had to do Physical work to the engine to re-allign it?

All new to me and all

 

[Ieuan-J]

Thanks for the advice. Had a look round today. Took the airbox off. Sprayed Wd40 around the pipes - nothing. Then realized that there was a pipe going to the bottom of the airbox I had not connected.
So I thought that must have been the problem. Gave it a drive round the block and still high reving on idle. It then goes back to normal after about 10-15seconds.
Got Vag-com out and gave it another re-align as I had move the butterfly a couple of times.
Will go out in it again later but think I have still got the same problem.

So maybe there is another vac pipe i havnt spotted or a split somewhere else.
Or the idle control valve?

that pipe in the bottom of the air box is the oil breather pipe and doesnt make a difference pluged in or out, just make your car stink when stood still if its out and makes the engine bay dirty...

 

[Neil1]

the other pipe coming out of it is the one that goes to the charcoal carnister. Just been reading this thread. Sounds like this is what it could be;
http://www.clubpolo.co.uk/forum/index.php?showtopic=218261&hl=throttle+body+polo

 

[Neil1]

anyone got any other ideas

 

[Mk2Ibiza]

Fueling problem?

 

[Finan]

Can you hear your fuel pump?

I Was told it was the fuel pump, but i could hear it starting up perfect.
So if u can hear ur fuel pump working.

Have you used Throttle body cleaner?
it'll clear out the system as it could be gunk just sitting the pipes.

 

[Neil1]

used carb cleaner from halfords. Not sure about the fuel pump - can hear something when i turn the ignition to position 2. It was'nt high revving on idle before i took out the throttle body to clean it. Which pipes would need cleaning out. I checked all the pipes today but coudnt see any leaks. Gonna buy a new throttle body gasket / o-ring tommorow.
Will try adjusting the throttle cable tommorow to see if that helps.

running out of ideas now. maybe buy another throttle body

 

[dan151]

i have this problem well had it. All i did was spray carb cleaner down the throttle body with the engine running and controlling the throttle with the cable in the engine bay. Also I changed the idle control valve and i've never had the problem again. You could try cleaning the Idle control valve with petrol or something

 

[Neil1]

where's the idle control valve located is it in a plasic case on the side of the throttle body?
I had a look in there and it was clean.

 

[Neil1]

I do remember going through a deep puddle last year and the engine stalled and I coudnt re-start if for 1/2 hour. I think water have got in somewhere and cause damage?