[chellapean]

hey i bought a 52plate 2.0 dti took it down the jet wash as it had been sat for a while and had a leaf/gunk build up on the windscreen...washed it and now i the car with a spanner light on the dash and will not rev over 3000rpm and engine sounds pinky....this is only intermittent though as i started it this morning and was perfect not a single light or pink sound...drove it down the road and it done the same....it smokes a little also when the light comes on and the pinking sound appears

 

[fattaffracingco]

sounds to me like its going into limp mode ??
did u jet wash engine ? u might have disturbed a sensor with water or lance maybe?
or have u got water leak inside cabin ? water dripping down loom ?
limp mode will restrict engine revs to prevent damage,will run like bag of sh*te,when mine did it ran awful,just stop turn off ign wait 20 secs restaart,if it keeps doin it u might wanna plug it in to code reader to see which direction it points u in ? best of luck,chris