We've got a problem with our 2001 1.4 16v Fabia. When it's cold, it's very jerky trying to hold a steady speed. For instance at 30mph in 3rd it'll jerk on and off the power despite the throttle angle not changing. Once it's warm it's fine.

EGR has been changed this week to try and cure it but hasn't worked.

Any ideas?

Not too sure, Sounds like an injector problem

Mine did this too tonight, apparently also did it yesterday when SWMBO was driving it.

Once I had been driving for a couple of minutes it stopped though.

(02 1.4 16v AUB, 52000 miles)

I'd be interested if anyone has a solution, just don't say piston rings!

I'm no expert, but as it is temperature related, one would assume that it might be related to a temperature sensor? (I had the opposite on my old car in that it was fine when cold but ran poorly when the engine warmed up and this was due to a temperature sensor). What's the modern equivalent to a choke on a fuel injected/electronicised car?

I was thinking temperature sender anyway as this is a well know fault on all VAG cars. I was hoping that someone else may have had the problem and had it fixed.

Mine didn't do it this morning.

The ECU sorts out everything that the choke used to, more fuel, holding the tickover higher etc.

Anyone know the price of a temperature sender?

Think I'll give it a go as its bound to be cheaper than a Stealer diagnostic, where they will just tell me nothing is wrong with it.

Why not see if there's someone with VAG-COM near you? Look in the VAG-COM forum.

I've changed the temperature sender, but now the engine management light has come on. The car is running fine at the moment, but I need to let it cool down overnight to see if I have fixed the original problem and then find someone local with VAG-COM to get the light turned off!

Looks like I've broken it now!

Decided to clean the throttle body out with carb cleaner. I now have the EPC and traction control lights on to go with the engine management light. The tickover hunts up and down all over the place and if left ticking over, the throttle refuses to respond to the accelerator pedal.

Wish I'd left it alone!

If you have the throttle body off, it needs to be recalibrated on vag-com when it's replaced.

Hopefully I can get that sorted tomorrow night.

I guess that the throttle body alignment that used to work on my A3 doesn't work on these. It was done by disconnecting the battery for a while and then reconnecting it and turning the ignition on, but not starting the car for afew minutes. The throttle body would then sort itself out and all would be well again. I did try this and it didn't work.