1.9 cdti 150 only revving to 3k rpm

**RikD** · 20th December 2010, 23:31

Wife brought the car home tonight saying it would only do 50mph on the motorway.
I've been out to it and it will only rev to about 3k.
I can't see any loose hoses or split pipes.
Its had a new manifold and egr valve this year.

**vauxhall-john** · 20th December 2010, 23:37

sounds like its in limp home mode mate, is there any warning lights present?

**RikD** · 20th December 2010, 23:47

Just the spanner light when a cold startup, which i'm assuming is glow plug related, as when i tried to get it read there wasn't any codes stored.

**mparks8590** · 21st December 2010, 00:18

check all the hoses are ok

make sure the egr is tightened on properly

beyond that

make sure air / oil / fuel filter is ok and clean

i'd also be checking injectors after all this maybe contamination post manifold replace

**RikD** · 21st December 2010, 11:55

Aye, I'll have a look. I couldn't see any split hoses and they were where they are supposed to be.
Its not running lumpy, its just like its in limp home mode. lack of power, won't rev etc..

**craigleeds** · 22nd December 2010, 17:48

its deffo in limp mode, check that there is no tears in any pipes especially the turbo pipe

**RikD** · 23rd December 2010, 14:58

I found the manifold to intercooler pipe was loose, so i've replaced the knackered jubilee clip and now it performs ok.

the Engine shaped light is on though, not too sure why as I can't see anything else and the car appears to be performing ok, but i'll know for sure tomorrow when i can take it out for a decent run.

i've booked it in to a garage to check the light out anyway but it'll have to wait until 4th Jan.

**mparks8590** · 23rd December 2010, 16:47

engine shaped is probably emmissions light

in which case i'd be getting my egr off again and cleaning

are you sure they replaced it last time?

**GazVXLINE170** · 23rd December 2010, 17:27

Either as mentioned the EGR valve is passed it or the Intercooler has split (if you are sure there are no split hoses).

More common for the intercooler to split in the CDTI's.

Gazza4

**RikD** · 23rd December 2010, 18:00

Originally Posted by mparks8590

engine shaped is probably emmissions light

in which case i'd be getting my egr off again and cleaning

are you sure they replaced it last time?

I replaced it with a brand new one about 6-8 months ago.
It goes normally up until you hit 3k, then hits a brick wall and no power. Before i fixed the hose it wasn't behaving normally.

I think i kept the old EGR valve (i only replaced it when trouble shooting a previous problem) as it wasn't faulty.

I'll stick that on at some point and see how i get on.

Cheers guys,