Right, next problem on the astra (the new fuel filter didn't sort it)
Its a 57plate 1.9cdti remapped to 212BHP, very recently I had the gearbox, clutch and DMF replaced. The car has done 35k.
Its 500 miles since the car has been back on the road and I'm reluctant to give it full beans yet. I've noticed that from 2300 revs onward the usual turbo sucking in sound is intermittant (very fast intermittant). The acceleration has never been clean since having it but I put this down to the remap and thought the little fuel pump was struggling to get fuel through fast enough. However, the Turbo whistle has always been constant regardless of acceleration issues until now??
Any ideas appreciated