my engine managment light is comming on at times and the car looses power but when you speed up the power comes back and the light goes out i have changed the mass air flow valve but problem still there the car is a turbo diesel and the turbo is ok can you help
My suggestion might be too late but I have the same problem, sluggish at low end revs but fine at speed. Suggest turbo vacuum solenoid. £130 from vauxhall dealer or cheaper on ebay.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cars.