2.4 20v jtd jerky on part throttle
I have had the low problem with a jerk when accelerating slowly and a slight rubbing type sound at 1800 - 2200 rpm. Also had no power at all, and then the engine light came on. This happened in early December. Took EGR off and cleaned (filthy), despite it being approx 2 yrs old (20k). I drilled the solenoid and was unable to punch it out. But the hammering action freed up the solenoid and I sprayed some degreaser inside and let it dry. Then sprayed some grease in. Also cleaned out the MAP sensor. This was also changed when the egr valve - so is the same age. The maf sensor was replaced approx 10000 miles ago.
Reassembled and he power was restored. The jerkiness at slight throttle is still there, and is now happening all the time. If I put my foot down, then power is there, no jerkiness, although the slight rubbing noise is still there at 1800-2200 rpm.
Mileage is 123000
I really hope this isn't the turbo, but how can i check? There is smoke when really booting it, but does clear after one or two hard acceleration runs. Leaving the engine idling for longish periods, I can smell burning diesel type smell.
04 156 2.4 JTD SW Veloce