Check the thin rubber pipe that goes onto the top of the injection pump, this senses the turbo boost pressure if its broken or missing you get no turbo boost.

Ther must be some way the pump senses the boost pressure, is it a EPIC pump, does it have a throttle cable connected to it or is it fly by wire?

I suggest you remove the inlet pipe to the turbo and check to see if it is free to rotate. I could be that you have cleaned out the sook but it has jammed the turbo. Regards Peter

had a look but otherwise for oil everywhere i cant see or get to anything,should i get rid,lol

thanks for reply and ill look at the harness,problem ive got is on this model i cant get near the turbo to check it theres no room even to get the lower inlet manufold off,may have to move the engine in the bay somehow any ideas,ive got no hoist or crane at my disposal and not much cash to play with,,,i did drive it and it runs ok under throttle but a bit rough when not,but it idles fine,no smoke or limp mode lights,no sound from turbo atall,,,thanks

Old thread but maybe it can help others. I just had exact same problems with my -97 Peugeot 406 2.1 td, Lucas injection. Lack of power, turbo seemed to be dead, no smoke, no engine/K-light in dash. It turned out to be a broken wire at the air inlet temperature sensor. Well worth checking before taking out the engine to change turbo.... ;-)