Bye bye Honda...
Car: Volvo V60 VEA D4 (181)
Join Date: 11th May 2012
Location: Ludlow, UK
Thanked 1,264 Times in 1,041 Posts
If this really is the turbo failing then it's strange that you aren't getting the diagnostic trouble code for low boost pressure, plus the engine warning light coming on again. Nevertheless, it's probably worth checking that a boost hose hasn't come off and, if possible, that the intercooler hasn't split.
Could be fuel? Weirdly, bouts of low fuel pressure can often cause the glowplug warning light to come on... when was the fuel filter last changed and is it the correct OEM (Denso) part?
If you have access to an OBD2 code reader then check for 'pending' error codes... even if the ECU hasn't confirmed an error condition and not yet put up the warning, often a new problem will have been noted. Most code readers will also display live data, which is really useful for diagnosing turbo/boost problems... you can also read the MAP sensor value changing as you drive around and - depending on load and other conditions - you should see the Manifold Absolute Pressure (MAP) soar well up past the 100kPa (1 bar) value as the turbo kicks in.
If you haven't got an OBD2 code reader then get one ASAP... the ELM327 types are available for less than £3 and some of the free Android apps are so good (I use Torque and Car Scanner, depending if I'm just reading codes or if I'm logging data).