C3 HDI accelerates when changing marches

Hello very good, my name is Pedro and I am new in the forum, I take this opportunity to greet and give thanks for the forum.
My question is, I have a C3 1.4 HDI 70 hp, and for some time when changing marches in a rise direction (from 1st to 2nd for example), when you release the accelerator to change, I notice that the car accelerates only for a second to recover its normal motor regime.
I would appreciate comments, the truth is that it is very uncomfortable in caravans and driving by city.

Greetings and thanks

The most caused thing is that the pedal does not return as it should or some type of problem with TPS, or the last exemption wear of the clutch disc

Thank you but I do not think it is any of that, in the dead point the accelerator does not fail, I just walk it with the vehicle circulating so I think it could be the speed sensor.

There is no one out there who can help me, please ....... greetings

That's why I tell you, none of the things I told you that you review occurs in neutral only fail and when you reach a pair or corner do you stop and it takes more than normal to lower truth?, Czech this disconnects the TPS and normal scalp if you do not fail your response to the Ford is the same thing. You don't lose anything in trying.