2010 CRD EGR Blocking advice

[Firetrol]

G'day all, I've got a EGR shim sitting here but worried about the probability of boost spikes if i put it in without a boost control plan.
I've done my head in reading posts on VNT adjustment & or Dawes & Needle valves. If necessary i would prefer to have a Dawes & needle set up as this will give me greater control overall.
I've got a scangauge set up & would prefer just to run with it as a boost measure. I've had this in for a few days & haven't seen any readings above 16.9.
My questions are:

1. Should I bother putting the shim in if I haven't got a way to control boost spikes?
2. Will I definately get boost spikes after blocking the EGR?.
3. What damage can be caused if I am getting boost spikes & i leave the shim in place until I get a Dawes & needle setup?

I've got a new IC on the way from Diesel Smart & was thinking I would put the EGR block in at the same time is all.
Cheers

[Firetrol]

On closer inspection of the flange where my EGR goes into the valve (where the blocking plate goes) there are two tabs, one on top & one below. Could my EGR already be blocked or would it just be the gasket? I can't tell if it's metal or not.

[threedogs]

Its possible it could be blocked already, it may not be causing any dramas
cause it may already have a hole in it to trick the ecu

[Firetrol]

Yeah I'm thinking I'll open it up before I fit the new IC to be sure. Hopefully the VNT has been adjusted to compensate for the boost if there is one already there.

[TheCaller]

Hi Mate. Im about to do my 2010 Patrol. Any advice? Thanks

[threedogs]

I think all the CRD guys should have a scan gauge .