03 Misfires When Accelerating

[JEP]

Hi.

I have a new shape Avensis 2003 with 2.0 petrol engine. (about 140.000km)

When engine is cold it runs well but just after building up some heat it starts to slightly missfire when accelerating at low rpm's (1000-2000rpm).

It's rare to feel any missfire when engine temperature has gone up to normal.

The car is fully served.

Mr T don't know what it can be. They found a bad temperature indicator that thought inlet temperature was -40degrees in summer. The sensor was changed under warranty.

It didn't change anything about the missfires though.

Any ideéas?

(sorry for my bad english...)

[cmia]

I would look at the EGR valve/sensor and the o/2 sensors on the manifold.