I had the engine light come on about 6 months ago in my 2004 Ibiza S. After 3 months they finally diagnosed a faulty EGR valve. This was replaced and everything was fine.
Now it has come on again! Car seems to run fine, usually idles at about 750, but sometimes in stop-start traffic it goes to about 500 and bounces about for a little while before going back where it was. Occasionally when first started on cold mornings it goes to about 1000 but soon settles to 750.
Could it be the EGR valve again? I had problems with a previous car with the oxygen sensor that had similar issues but that would sometimes stall as well and wasn't an Ibiza.
Please help, it's really starting to annoy me (and also my boss as every time I have to the garage I have to sort my hours out first! : )
Sunday, October 2nd, 2011 AT 12:59 PM