i have a 2000 16v fabia. the local skoda dealer reckons i need a new egr valve.they did an electronic check but i received no print out so i'm not sure what they really did. the warning light comes on at start up, flickers slightly and stays on. 3 times the dealer has reset it , it then stays off for 3-4 days and then comes on again randomly and stays on. do these symptoms indicate a need for a new valve or should i get it diagnosed at a main dealer before i part with my dosh. thanks

A copy and paste job from another thread:

I have seen a few of these where an excessive flow error for the EGR system has come up. On top of the EGR valve is a variable resistor which turns when the valve turns, the ECU monitors how open the valve is from this resistance. What happens is that the EGR pipe under the throttle body gets blocked, restricting the exhaust gas flow, the ECU then opens the valve a little more to increase the flow until it is fully open and the desired amount of exhaust gas is still not present in the inlet - hence the excessive flow code, when in reality there is no or too little flow.

The first thing a non informed garage will do is replace the EGR valve, when what is required is a simple cleaning out of the pipe. I would have thought that this would have been noticed when the throttle body was removed.

Rather than incur another diagnostic charge it may be more cost effective to remove the throttle body and clean the pipework.

I have also had this on an 03 plate fabia 1.4 16v. Been trying to find out what the cause is for 3 - 4 Months now. Best to get the diagnostics done and go from there. If you look for threads posted by me you'll be able to see some of the things that we've had done and maybe something will help you.

Our car is in again for diagnostics and repair tomorrow so i will post fault code after i find it out.

Hope that your light isn't as troublesum as ours!

A copy and paste job from another thread:

I have seen a few of these where an excessive flow error for the EGR system has come up. On top of the EGR valve is a variable resistor which turns when the valve turns, the ECU monitors how open the valve is from this resistance. What happens is that the EGR pipe under the throttle body gets blocked, restricting the exhaust gas flow, the ECU then opens the valve a little more to increase the flow until it is fully open and the desired amount of exhaust gas is still not present in the inlet - hence the excessive flow code, when in reality there is no or too little flow.

The first thing a non informed garage will do is replace the EGR valve, when what is required is a simple cleaning out of the pipe. I would have thought that this would have been noticed when the throttle body was removed.

Rather than incur another diagnostic charge it may be more cost effective to remove the throttle body and clean the pipework.

many thanks

We find its the pipe which goes fromt the valve which is more clogged up, ie the upright one.

A quick diagram, please excuse the crudeness

A copy and paste job from another thread:

I have seen a few of these where an excessive flow error for the EGR system has come up. On top of the EGR valve is a variable resistor which turns when the valve turns, the ECU monitors how open the valve is from this resistance. What happens is that the EGR pipe under the throttle body gets blocked, restricting the exhaust gas flow, the ECU then opens the valve a little more to increase the flow until it is fully open and the desired amount of exhaust gas is still not present in the inlet - hence the excessive flow code, when in reality there is no or too little flow.

The first thing a non informed garage will do is replace the EGR valve, when what is required is a simple cleaning out of the pipe. I would have thought that this would have been noticed when the throttle body was removed.

Rather than incur another diagnostic charge it may be more cost effective to remove the throttle body and clean the pipework.[/quote

hi, how do i remove air cleaner and how do i remove throttle body and clean pipe?. are there any areas that i need to be careful of. hope you dont mind sending me an "idiots guide" regards

No idiots guide I'm afraid, but it is all quite intuitive and straight forward, assuming that you have a basic level of mechanical experience.

The plastic engine cover contains the air filter, it is rubber mounted to the engine and just pulls off. Start at each corner and watch out for any breather pipes attached. Removing the air filter element means undoing the screws on the underside.

The throttle body is bolted to the inlet manifold, just undo the bolts and remove it. It has an electrical collection which you can unplug or leave attached, there is a school of thought, whereby if you leave it attached you will not have to perform the basic setting on it once re-fitted. I think that there is also a plate which sits between the throttle body and the manifold.

With the throttle body removed you will see the pipe in Lummoxs diagram, once you have loosened the carbon in it you could disconnect it at the EGR valve end and try and blow the loose stuff out, or maybe use a vacuum cleaner.

Take precautions not to drop anything down the internals of the engine, carburettor/brake cleaner and an old toothbrush can be used on the throttle body and a flexible wire on the pipe.

hi, many thanks for info, it is much appreciated. i'm a newbie to briskoda so i'm not sure if my replies have got to you. anyway, thanks once again. regards jedo