D5 (2005 on) - XC90 (185) No boost and weird whoosh noise!

Mkc2bad · Nov 15th, 2021, 22:58

Bit of a strange one - Car was running fine yesterday, wife went to use the car this morning for school run and its in permeant limp mode with Engine warning message on the dash. Scanned with VIDA and coming back with ECM-1507 turbo control - Too low pressure.

now the weird part - When driving, it feels like the turbo is not spooling at all, and I can hear/feel air is being pushed into the cabin via the air vents that feed the windscreen.
This gets noticeably more forceful the harder you accelerate. To get the car up to any speed at all, its actually better to be really gentle on the throttle and build it up slowly. Any attempt at trying to make the turbo spool send a rush of air and noise into the cabin, and considerably hinders any sort of progress.

Any ideas please? I had a look from on top, and took the tray off underneath and couldn't see any split or disconnected pipes.

As a side note - A few months back, the car was having issues boosting, so replaced the MAP sensor after vida threw up a few codes (one that plugs in ontop of the intercooler pipe) and all was well until yesterday.

Cheers
Mike

Nov 15th, 2021, 22:58	#1
Mkc2bad New Member Last Online: Jun 19th, 2023 11:18 Join Date: Jul 2019 Location: Welwyn Garden City	XC90 (185) No boost and weird whoosh noise! Bit of a strange one - Car was running fine yesterday, wife went to use the car this morning for school run and its in permeant limp mode with Engine warning message on the dash. Scanned with VIDA and coming back with ECM-1507 turbo control - Too low pressure. now the weird part - When driving, it feels like the turbo is not spooling at all, and I can hear/feel air is being pushed into the cabin via the air vents that feed the windscreen. This gets noticeably more forceful the harder you accelerate. To get the car up to any speed at all, its actually better to be really gentle on the throttle and build it up slowly. Any attempt at trying to make the turbo spool send a rush of air and noise into the cabin, and considerably hinders any sort of progress. Any ideas please? I had a look from on top, and took the tray off underneath and couldn't see any split or disconnected pipes. As a side note - A few months back, the car was having issues boosting, so replaced the MAP sensor after vida threw up a few codes (one that plugs in ontop of the intercooler pipe) and all was well until yesterday. Cheers Mike

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