I bought this car Nov 2004 and it had a rough idle when warmed up. In an effort to solve this I set the valves, replaced the injectors with rebuilt ones. No help. Meanwhile, and for other reasons, I installed a rebuilt engine Jul 2006. By Sep 2006 it too was idling rough after warm up.
Once again I verified valve settings and replaced the injectors with rebuilt units. I also replaced and adjusted the damper bolt, replaced the the motor mounts, transmission mounts and the engine shocks. No help.
In Jun 2007 I went all out and put in a dealer supplied rebuilt injection pump. No help.
So here it is Sep 2010 and the rough idle persists. It might be good to mention that I did retain the turbo charger and the steel injection pipes from the original motor and put them on the rebuilt engine at the time of installation. I also note that the turbo does have an internal oil leak and I plan to overhaul it soon. I hope some one reading this has been down the same road and found a fix or some steps they found to work. Thanks for all your help. Joe