HDi throttle damping

bernie · Unread post by **bernie** » 10 Oct 2004, 23:59

My Xantia 110 hdi has a damping effect on the throttle. ie. the revs die down after the pedal returns.
I know the 1.9td had a physical sprung damper but there is not one on the HDi.
It is not the cable sticking.
So does the accelerator pedal position sensor have a slight delay?

Mosser · Unread post by **Mosser** » 11 Oct 2004, 00:35

It is most likely to be an ECU function, most modern car do it nowdays

PeterMann · Unread post by **PeterMann** » 11 Oct 2004, 15:38

My 1994 Xantia 2.0i does the same dumb thing.
I don't like it, because it slows gearchanges for rev-matched clutch engagement, but modifying it is too hard for the resultant benefit.
Sometimes the engine goes unstable and surges repetitively if I come off throttle , which is horribly inelegant.
Never happened in my Carby Cits.
My right foot should be the only control above idle revs.

Kowalski · Unread post by **Kowalski** » 11 Oct 2004, 19:33

The HDI has a fly by wire throttle...
You could check whether the cable is free, oil it and work the oil into the cable and see whether that improves it or not.

bernie · Unread post by **bernie** » 11 Oct 2004, 20:27

Hi Kowalski,
I've disconnected the cable, it's the fly by wire bit that's got a lag.
Just want to know if their all like that. Ta