Hi guys

I have a 2011 Octavia estate 2.0 TDI.

Recently my engine management light came on and when I took it in I was told that the system is detecting a bad throttle sensor - £175, including labour, to replace.

The car however seems to be driving fine; acceleration normal, idle normal and kick down working fine. If it wasn't for the warning light on my dash I wouldn't know I had a problem.

Is it possible for the management system to detect a fault where none exists?

Thanks

Doug

It could just be a wiring fault - an occasional break or short circuit.  Can you ask what the fault code is?  Was this a Skoda dealer?  I would take it to an independent garage or Halfords as they might be more forthcoming.

Independent garage with a good rep by all accounts. Do Halfords have the kit to do this kind of stuff? I wasn't aware of that. 

I took my wife's Fiat 500 after the engine started cutting out at random.  Halfords reset the engine management and the car was fine after that. This was a Halfords Autocentre.  I think most garages have generic diagnostic equipment nowadays.  Halfords is able to update the official, electronic service record for most makes, including Skoda.

Yep, their autocentres. Closed today but I'll take it in tomorrow. Thanks for that 😊👍

Some are open Sunday too

None near me unfortunately 😊

Well that was fun - not.

Took the car into Halfords this morning to do a diagnostic. They came up with two faults! U111300 and P012100. That's about all they gave me apart from some scribble on the job sheet that I can't read. They really didn't appear to have a clue what they were talking about, or were just useless at explaining it. And quoted me £336 to fix whatever the fault is (the previous garage quoted £175 for a new throttle pedal).

And still the car drives perfectly. I wouldn't know there was an alleged fault if it wasn't for the light on the dash.

 

Going backwards here 

Try looking up the fault codes on the VCDS site - www.ross-tech.com.

 

Edited 16 October, 20205 yr by StickyMicky

They will be spunking away your money by replacing the throttle pedal, the problem is soot build up from the EGR on the throttle body restricting the motion of the butterfly, said item on a diesel engine has no function for normal driving, all it does is create vacuum in the inlet manifold under certain conditions to draw through EGR gases and to ensure the engine stops in an orderly fashion when you turn off the ignition.

 

I am going to bet 2 things:

 

Your vehicle has had the emissions fix

 

That the engine sometimes shakes a little on switch off

 

I would also guess that your fuel economy and the response of the engine is not what it could be.

 

Have a look at the thread I created in the Yeti section for an overview of the results from removing and cleaning the throttle valve, there are many others with detailed instructions.

 

 

Edited 16 October, 20205 yr by J.R.

Believe it or not JR I was watching a vid on youtube on the removal and cleaning of that valve this aft

 

I've only had the vehicle since August, so I don't know if it's had the emissions fix.

 

I've not noticed the engine shake when it's switched off, but I have sometimes heard a loud noise that goes on for some time after the engine is switched off - bit like a fan running, really quite noisy. Fuel economy is regularly in the high 50s, and I've had 70 out of it on a motorway drive (diesel).

 

I'll take a look at your post, and any others I can find. Thanks for that

 

 

You said: "I have sometimes heard a loud noise that goes on for some time after the engine is switched off - bit like a fan running, really quite noisy." 

 

That could be the electric cooling pump. It comes on after you turn off the engine to give coolant circulation for a short time. I can hear mine in the cabin and outside but is not what I would call noisy.