V70 D5 - No Power - Fault Code 042

[Seight_Returns]

2006 MY V70 D5 - 55k Miles

Orange triangle came on yesterday accompanied by "ENGINE SYSTEM SERVICE REQUIRED MESSAGE" - car massively down on power, runs smoothly and accelerates very slowly upto motorway speeds but feels as if there's no turbo boost at all.

Holding Trip Reset in whilst turning key to position 2 initially showed codes 042 and 167. No longer shows 167 but still shows 042.

Drove home and boost would come and go - sometimes the car would accelerate as normal, sometimes no power at all.

Drove the car again this evening - initally fine then down on power after about 5 miles and stayed that way.

Noticed slight smell of burning melted chocolate for the last couple of weeks (although may have something to do with the amount of chocolate my kids have dropped on the floor!).

Idle perhaps a bit uneven for last week or so but only slightly so.

Haven't had a chance to look at car in the light yet - had a quick poke around with a torch tonight and no obvious hoses split etc but couldn't see properly.

Any guidance on likely faults/resolution gratefully received !

[mik.ross]

Try this site for fault codes.

http://www.volvoforums.org.uk/showthread.php?t=422...

Sounds like the lambda sensor.

Edited by mik.ross on Wednesday 9th February 21:33

[y2blade]

I have no idea..sorry

try asking here (direct link to the relevant sub-forum)
http://www.volvoforums.org.uk/forumdisplay.php?f=1...

I hope they can help

[Busamav]

No idea what has caused the system to put the engine into safe running mode , but last time it happened to me ..

I disconnected the battery for a short while to empty the ecu memory and reconnected it.
All has been fine ever since .

[Seight_Returns]

Dropped it into Braydon Motors this morning.

Split turbo inlet hose apparently.