Looking for some advice from one of the many techies we have on this site.
I have a 1.6 TDCi Feb 2008. 118K on clock. DPF removed and remapped. EGR Blanking plate fitted (Polish supplier on Ebay). Recon Injectors fitted. Cam belt replaced.
Occasionally when accelerating in 4th/5th there is a slight juddering, as if the timing is not quite right. If this has occured then I'll experience thin white smoke when I lift off the pedal and this will continue intermittently for the rest of my journey. If the juddering hasn't occured then neither will the white smoke.
Someone ( a commercial vehicle mechanic ) suggested over fuelling, could this be and if so what is the remedy ? The car is not doing a great deal of motorway mileage at the moment and isn't being very fuel efficient which made me wonder about this last point.
I'm also getting a bit of engine/diesel odour coming in the air vents. I've checked the injectors and whilst I've suffered injector leakage in the past, there's no evidence of it now. no "pfut-pfut-pfut" and no detectable exhaust blowing up from the injectors.
Could this be related to a split or broken pipe somewhere around the engine ? If so what other symptoms might I experience, in relation to the existing ones.