159 Cruiser and
AO Silver Member
Join Date: Jul 2012
Location: United Kingdom
2.4JTDM... no smooth ride for me.
Have a read of the diesel power loss guide in the stickies (which has more details), but possible reasons ( in order of ease of checking/ resolving):
EGR ( you seem to have ruled this out)
DPF blockage ( italian tune up and DPF cleaner in Your fuel tank),are you doing shorter journeys?
Map sensor mucky
Turbo vacuum solenoid (also check for leaky pipes)
Turbo vanes sticking
The MAF sensor normally is noticeable higher up the rev range first
Also note there is a 2.4 map update ( there is an update which can be uploaded, most garages fail to do it)
Having said that I find it unusual you have a sudden power change (loss.) on lifting the clutch? Brakes?
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159 1.9JTDM Ti and Giulietta 2.0 Veloce
ex: Punto 55s, Golf Mk5 1.4FSi, A3 (8P) Sportback 2.0TDi SE, A4 (B8) 2.0TDI S-Line, 306 HDI Meridian
Last edited by giblets46; 17-11-14 at 06:46.