High Revs between gear changes

[JackGilly]

Hi guys,

 

My 2005 fabia vrs is revving very high between gear changes. This happens between second gear and six gear, however when the clutch is dipped and this happens a dab on the brakes brings the revs back to idle. Any thoughts?

 

Cheers,

Jack

[KenONeill]

@JackGilly - OK, without VCDS evidence this is a bit of a guess, but your throttle position sensor may not be supplying correct signals to the EMS when you lift. This is supported by the fact that applying the brakes automatically sends a signal from the pedal switch to the EMS and the EMS is programmed to select idle throttle whilst it's getting this signal.

[JackGilly]

Hi.

 

Thanks a lot for the reply. Turns out the new front tires I had on the car that were the wrong profile caused the problem. I've now changed back over to the correct tire profile 205/45/16r and this has sorted it.

 

Thanks again.

[KenONeill]

@JackGilly - Thanks for that; it's a perfect illustration of how incomplete information can lead someone to a wrong diagnosis for entirely logical reasons!

 

On the subject of tyre size, it would be OK to run, say, 215/40R16s rather than the stock 205/45s as long as you fit the 215s all round rather than just changing one end.