03 2.0 Hdi Swb

[Sugar_Puff]

Hi all i have a swb 03 2.0 hdi and its really really gutless il put my foot down and it will just slowly rev as if im pottering along very occasionally i will get a surge of boost about 4000rpm which when this happends its definatly feels how its meant to go when driving you cant feel any kind of boose unless it decides to give you a hint of what its meant to be doing, ive changed/cut down the vaccume lines as they were perishing/cracking i dont really use the van its just there as a trackday van to take the bike on trackdays.

 

Any faults come to mind? Thinking either turbo or fuel pump?? Cant hear the turbo spool/boost like you can on normal diesel engines...

[paul.h]

There was something like this recently on another car and I vaguely remember it needed a new air flow meter (MAF) but I could be wrong. You could try unplugging yours, it should put the car in limp mode and give a fault code but limp mode may perform better.

 

http://www.citroen-owners-club.co.uk/citroen/topic/23371-05-20l-hdi-relay-no-power/

[Sugar_Puff]

Yeah i read.through that ine lastnight its a that hasnt worked for me it drives.no diffrent without the maf.. :(

[Sugar_Puff]

It feels like its not really making boost but it still revs kind of quick'ish.. its been like it since i brought it 7 months ago :/

[paul.h]

Maybe it is the MAF if it is the same connected or not. If it was ok, then disconnecting it would put it in limp mode which would limit the performance. You might need to have a diagnostic check, otherwise you may end up replacing parts until you eventually find the fault.

[Sugar_Puff]

Hmm diagnostics are crystal clear nothing stored or anything, il order a maf for the fun of it, mrs works for ecp so cant hurt anyways, thanks paul :)