I'll try to keep this short...... My car is. 2007 Accord Tourer diesel, 180k on the clock, with a full Honda service History, and up to now has been completely faultless. The car was re-mapped. By Fahad 20k miles ago. A few weeks ago I was accelerating out of a roundabout onto a dual carriageway, when at about 3000 RPM the car suddenly felt 'flat' and stopped accelerating, At the next roundabout, I did the same thing, but kept my foot down to see what happened. The car went into limp mode, and the engine warning light came on. I pulled up, switched off, and restarted, the engine light was still on, but it was out of limp mode, so I carried on the journey, but taking it easy. I also noticed that there was a strange kind of 'warbling' noise appearing to come from the glove box area of the car - a noise that didn't exist before. I took the car to the Honda main dealers in Portsmouth, and the fault code was P1237, and the problem was diagnosed as a faulty turbo. £2800 to fix !! I sourced a reconditioned turbo, for £240 from London Turbos, and had the turbo fitted at Honda for £420. When I picked up the car, it still had the strange 'warbling' noise, best way of describing it, was that it sounded like there was something big rattling inside the glove box. I took the car onto the motorway, accelerated and it was exactly the same as before, flat after 3000rpm, and after keeping my foot down the car again went into limp mode. Back to the main dealers again, and the car has been there for a week now. They tell me that the diagnostics still point to a problem with the Turbo. They have even fitted a different Turbo, and still get the same problem, they are baffled, and so have contacted the 'men in white coats' at Honda UK. Does anyone have any ideas what the problem could be? Apart from the loss of power above 3000rpm the car still performs perfectly below 3k RPM, and the only other clue is this strange 'warbling' when I lift of the throttle. Hoping someone can shed any light on this.