Havent looked at your specific file.
moste edc16c3 have 4 n75... the fourth one is the base value, first three are during regen, state dependant...

Sorry, my fault, I only looked quick for the addrs
There are only 3 maps, in all your files. I checked a couple in the Ori section, and one has 3, and another has the 4.
So I'm not sure, I'm still learning myself.

In my opinion its always the last one in the series, which is the base map.
It's the same with boost and railpress maps anyways

Excellent, thanks, I've just been looking for the 4th N75 but gave up and came on here to ask for help! I've changed the 3rd (last) N75 to see if it makes any difference, I'll try it out later tonight hopefully and report back.

Hi, how did you get on? I've now seen a few more with just the 3 N75 maps.
A damos I have has only got the 3!

First I tried raising upto 2k RPM a bit and it made no noticeable difference, today I've just got back from testing a map with the same area raised quite a bit and still no difference below 2k RPM, but it seemed to pick up quicker at 2k RPM, so I don't think it's the map causing the problem.

I've put the original + DPF off map back on for now, I'm going to try setting the whole N75 map to 0 to make sure this is the map that's being used.

Does the intercooler get bypassed in normal running conditions or only during regen? Maybe there's a problem with the flaps in the intake not working properly? I would have thought I'd get a fault code if something like that wasn't working properly.

I'm servicing it tomorrow, so I'll investigate the pipework while I'm there.

Theres a second reason why you will not see any real difference...
the N75 maps are set point maps used for steady state operation, so an open loop control...
during acceleration its closed loop or PID controlled, still runs off the base maps, but values will be altered anyways by the ecu.
when setting up the N75, you need to disable the PID control...

I'm not trying to add extra boost, I'm trying to restore boost to standard, I don't mean the car is a bit under powered below 2K RPM, I mean there is no power at all below 2K RPM, to pull away you have to rev the engine to about 2.5-3K RPM and slip the clutch until you're up to speed, if revs drop below 2K while driving you cannot accelerate, you have to change gear, it's not a gradual thing, it's like a switch, under 2K, no power, 2K+ loads of power (well, as much as can be expected from a 1.6 diesel engine!)

I read somewhere that a lack of back pressure at low RPM after removing the DPF causes delayed boost, then boost spikes at higher RPM, that's why I went down this route, but now it looks like something else is the cause of the problem. When I service it I'll give it a good check over for mechanical faults, then move on to a diagnostic session with PP2000/Diagbox, then try replacing sensors.

Because the DPF had already been removed when I bought the car I don't know when this problem started, before or after DPF was removed.

Try unplugging the MAF sensor. it'll throw a code, but will use default values instead of dodgy readings if its faulty.
Just a thought.

I've already tried that, it drove exactly the same, if I don't find anything tomorrow I'll try the same with other sensors.