I've just started to get this whining/siren sound coming from the engine on a cold start which i believe is the turbo, the sound only kicks in when i put my foot down a bit and the sound gets louder at around 2000rpm. I had the turbo reconditioned about 18 months ago plus i had the car remapped with egr off. When I have driven the car for a bit and its heated up, the sound becomes much lower but still noticeable.
I took the car to the garage who reconditioned and fitted my turbo and he is blaming it on the egr being off and that a vacuum solenoid and another solenoid is not functioning correctly so the turbo isnt working at 100%.
Has anyone experienced or know anything about this please? The car still drives like normal and has plenty of power, no engine lights on all clear, although the car is eating a bit extra oil, just before the last service the car was drinking the oil a lot more as the oil got towards the end of its life.
(2008 Accord 2.2i CTDi)