Berlingo Engine Light EGR

[Bonzodog]

Hi. The engine management light on my Berlingo (2004 2.0L Hdi owned by me from new 128K miles Maintained and serviced by me for the past 7 years ) comes on and goes off quite regularly and has done for the past 3 months. Local diesel specialist read the codes and replaced the EGR servo don't think he was completely convinced that was the problem (after 5 days I wanted the car back!) the light did however stay off for a few weeks before going back to being on and off for days at a time. Came on again yesterday whilst pulling away from a stop but often just fails to go out after starting the engine once on seems to be alight for 3-5 days. I have removed and examined the EGR valve and it does operate correctly when a vacuum is applied. I have carefully examined all the vacuum pipes from the vacuum pump to EGR servo and the brake servo all seem to be OK and not leaking. What next? I want to test the vac pump which I will but I don't really think that's the problem. There is little difference in performance with light on or off, possibly a bit more "jerky" with light on but quite honestly its difficult to tell. It doesn't really bother me but I assume that it will fail an MOT with the light on. If I buy a cheap code reader will that get me more info, I'm reluctant to take it to the main dealer as it seems to me it's an intermittent fault and I could end up spending lots of money for what could be a cheap fix. I also assume EGR valves fail often judging by the number on eBay.
Any help or comments would be appreciated.
Bonzodog Woof.

[Northern_Mike]

Whereabouts are you located? It'd be really helpful to get it on a Lexia. If you're anywhere near Reading, I can do that for you. I have a Berlingo, same engine, same year. A cheap code reader won't tell you a great deal sadly.

[Lighty]

I had a Picasso with a similar issue, turned out that the vac pipe was blocked at the plastic tee on the brake servo pipe

[falling-out-with-my-car]

Not perfectly sure but I think the Engine management light can come on if there is a fuel supply issue
have you ever cleaned the tank strainer? I'm sure somebody will be along to correct me on this.

[Bonzodog]

Hi. I have checked carefully the vac pipe especially the "T" its a very small hole that feeds the EGR Servo could make it bigger. Just had a new fuel filter so don't think it's fuel but it is a Citroen anything is possible. I am in Colchester so anybody local with a Lexia kit I'd love a check of the codes for beer tokens.
Bonzodog