Howard1471

I've owned my 1.6TDCi for 2 years. 18 months ago the DPF was removed, and Engine reconfigured, after if failed and the garage ( and the AA man ) was unable to reset it. The car had approx 65K on the clock at that time. Over the last 12 months I've noticed white smoke coming from the exhaust. This does not happen all the time.
When I travel at motorway/Dual Carraigeway speeds the car runs fine but as soon as I ease up for the slip road white smoke comes from the exhaust. I can drive to-and-from work ( round the ring road ) and all will seem ok. Then, as I turn into the offce, I notice it again. The only constant condition is that it occurs when I ease off, if I open the throttle even slightly the smoke disappears.

Has anyone any [sensible] suggestions?
Things I could check myself. I'm not adverse to getting the bonnet up.