Xantia HDI 90hp Surging

[SteveM]

Hi, Wise and wizened one's..
When I take my foot off the throttle the car picks up speed and will go for about a minute before the revs drop back down,
I can't find any air leaks on the two rubber hoses, Could this be a EGR fault ? .. I was thinking about blanking it off anyway..
Any help would be greatly appreciated
Steve

[rory_perrett]

I had something similar on my xantia HDi 110hp.

http://www.frenchcarforum.co.uk/forum/v ... lf#p276713" onclick="window.open(this.href);return false;

Mine turned out to be air leaks in pipes (not had the problem since the fix in Oct 2011) so I think you must be in the right area with the EGR valves if all your pipes are OK.

[SteveM]

All sorted......... Your post Rory made me go back to the vacuum pipes and sure enough there was a tiny split in the pipe from the vacuum pump to the elctrovalve, How I missed it the first time I just dont know .... Thanks for posting mate

[rory_perrett]

Glad to be of assistance, then can be a bit of a swine to find.

Rory