Rover 75 diesel smoking

[unimatrix1066]

my car has recently started producing clouds of smoke when pulling away and sometimes rev up and down when driving , does anyone have any ideas as to the problem

[Lates]

air , fuel filters , over fuelling , faulty maf sensor. Guessing if you have fsh smart money would be on the maf sensor.

[unimatrix1066]

the car has recently been serviced by ex rover dealer, the air filter is new as i had to fit as they forgot!
i have just replaced pcv as blocked and cleaned out the intercooler recently

[Lates]

Unplug the maf sensor and take it a good run on a bypass to see if there is any noticable difference in smoke levels.
Did you also clean out the egr valve ?

[unimatrix1066]

i cleaned out the egr and intercooler recently as per rover rons posts, i will give the maf ago the car has done 90000 miles and only gets used at weekends
thanks

[Roverron]

If its not a faulty maf sensor, then check the intercooler hoses and seals.

Ron

[unimatrix1066]

disconected maf today and drove to falmer on dual carriageway now ok, failed maf.
thanks

[Lates]

Happy days, just sit down if the dealers are to supply a replacement as there are £££'s.Failing that pm RoverRon for a magic box of tricks to solve it once and for all.