High Revs?

[Clembo]

Folks, I have a 2002 TDI sport Passat with 62k miles. Intermittently when I turn the key the engine starts up as though I have my foot fully on the accelerator for litterally about a second. Then after about 5 mins of driving I notice the revs rise to just over 1000. Then after about 5 mins all is well and they are at a steady 900. Has anyone else had this? Could it be the MAFF? I have the car booked in for a cambelt change mid March and so I hope to have the local dealership take alook. But in the meantime if anyone has any ideas it would be greatly appreciated. Many thanks.

[speaky]

Sorry, don't have an answer, but do have the same problem!!

Our 2000W TDi 115 4dr se Passat with 80k mls occasionally revs its nuts off at start up for a second or two, then settles down to normal idle.

Will wait with you for some kind soul to post diagnosis and cure!!

[activa]

I had this on my Golf.

Replaced the water temperature sender a couple of months back and it hasn't done it since.

27 quid and five minutes fitting,even with my non existant mechanical skills!

[meriafel]

I have a 2002 54 plate Passat Sport TDi Est with nearly 95k and had a similar occurance a couple of weeks ago but no problem since.

On start up from cold the engine revved slightly and then settled back to above its usual 900rpm for just a few seconds. No problems since.

I have a new Air mass and MAP in the boot that I haven't fitted as yet as I haven't had a recurrence of the lack of power I had before Christmas which I posted on the site. The problem is sorted simply by restarting the engine. It may be MAFF or MAP or just a bad day but it does have this personality that I think I can live with if it is so easily cured.

It still flies and is a joy to drive since I chipped it. And new Conti's tomorrow........