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MG MGF Technical - A poor french driver need some help!

Hello,
I bougth my new MGF 1 week ago but I met too my first technical problem !!
Last Sunday I drove 500 km without any problem but near from Paris there were a traffic jam. I stopped my car but my motor didn't want to turn normaly (800/900 tr/mn when I don't push accelerator). It turned beetween 4000tr/min and 5800 tr/min!!!. I stopped my car during 10 minutes and the problem seems to be disappeared, but it appeared ten minutes later.
Do you know this problem?

(Sorry for my poor English...) If you know this problem please help me!
If you speak french better than I write english I can write my message and more details in french.

Thanks
Cédric
POUTREL

Mmmh,

Is your trottle body from plastic, or is it a metal one ?
If it's from plastic, be sure that you have found the problem. Replace it by a metal one (maybe you can order one from MS (52mm) instead of the 48)
the problem of the plastic ones is that they can't stand the heat from your engine very well after a while. because of that heat the trottle get stucked in the body.

And yes also my English is very bad. Sorry !




BV Bruno

Cedric

Not sure exactly your problem but you can reset the throttle by.

1 turn ignition to 2nd position

2 Press throttle peddle completely to floor and release 5 times.(Slowly)

3 Turn ignition off

See if this helps..

If you want to explain the problem further in french its ok

Stu

Stu

Thank you for yours answers!
If I meet again this problem I will try the 2sd solution before the first one.
If I want to change the

For Stu, Wokingham et les francophones:
Lorsque je me suis mis à ralentir le régime moteur n'a pas voulu descendre en dessous de 3000 tr/mn il n'arretait pas d'osciller entre 4000 et 5500 tr/mn et après 10 minutes de pause (capot de moteur ouvert et chauffage au maximum pour évacuer la chaleur)la voiture est repartie normallement pendant 20 minutes et le problème est réapparu ensuite.
J'ai cette fois juste coupé le contact pour le rallumer ensuite et c'est reparti normallement le temps d'arriver chez moi. Je n'ai pas réessayé depuis.
POUTREL

Yep, You can try to reset the stepper motor, like stu is telling, but I'm not shure this will help, because after 20 minutes everything is normal again, I'm thinking IMO about a heat problem at the trottle body, and not a stepper motor error.
Anyway, let's hope Stu is right, because of the cost of a new trottle body.

HTH
BV Bruno

Poutrel,
I had this problem not long ago and you will find a comprehensive summary of the causes / solutions if you search the archives in 2003 for "sticky throttle".
Anthony Braham

This thread was discussed between 11/06/2003 and 12/06/2003

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