Renault Scenic poor acceleration / power at low to mid revs

Car: Renault Scenic
Variant: 1.9 DCi Dynamic
Model Year: 2003
Categories: Running Rough, Starting & Power Loss
Recently my scenic has lost power when accelerating from low revs, 1500-2500 rpm. Once the turbo cuts in at about 2500 everything is fine, but up until this point, there is no ooompfh. I read some comments about the EGR valve, so I dismantled it and gave it a serious clean; it was absolutely lagged in oily crud. My hopes faded when I went for a spin after re assembling it, with no noticeable improvement. Any tips or solutions much appreciated, Thanks
Posted: Sep 12, 2010 (14 years ago)
check your vacume supply to your turbo control valve find the vac pumps on the end of the n/s cylinder head youll see a small rubber pipe pull it off and drill it out with w 2mm drill ( you may need to remove black platic bit on vac pump to do this) Simples :)
Posted Sep 2, 2011 (13 years ago)
Have you had a look at this similar problem:

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Posted May 22, 2015 (9 years ago)

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