Audio overload gsf timing plus#

Could this be causing the problem? The switch seems fine but wondering its something to do with the EGR valve itself. Now I might be clutching at straws but I noticed that the egr senor switch that is on the fuel pump clicks in at that time/position. It also seems to 'miss' and smoke come out more around the 2000 rpm mark, if I hold it at 2000 rpm the revs rise and fall!

I have noticed that if I leave the car to tick over there is very little white smoke if none and it idles fine (Will double check this tomorrow when engine is cold again).

Audio overload gsf timing plus#

The specified clearances are Inlet 0.15mm Exhaust 0.30mm both are plus or minus 0.08mm so if I have read it right all are within that tolerance. I have checked the valve clearances and they are as follow, readings start timing belt end Moved into its own standalone post - The original post can be found below I'm now stuck for suggestions so all help welcome. I'm not too familiar with diesel engines and fueling but I take it the white smoke is down to unburnt diesel getting into exhaust manifold and then being ignited there? I have also checked the temperature sensor which the post heat timer works off and this gives no resistance reading when cold but when hot I get a reading although can't remember exactly what so I am guessing this is also working fine. I have replaced the glow plugs, checked the pre and post heat timing and they appear fine. Only does it when cold! Also the mpg has drop from an average of 50-55mpg down to 40 mpg! The car starts first time almost in an instant but when driven or reved white smoke comes out of the exhaust, poor idle, hesitation when driven. An after doing a google search this is the only post I could fine with the same symptoms. Sorry to bring this back from the dead after so long but I am getting the same issue with my 1996 Citroen Saxo 1.5D which I believe has the same TUD5 engine.