For my first change, I thought I'd look at the rail pressure. This should have no knock on affects and should not require me to change all other maps to suit.

I want to bring my max. rail pressure to 1400 bar.
I do not (at this stage) want to increase IQ at all. So I am not expecting BHP gains.

So do this:

Diag. Rail Pressure Limit: 1500
SV-RPL 1,2,3,4,6,7: 1400
SV-RPL 5: 1500
Rail Pressure Limiter map: It looks very obvious what needs to be changed here.
Rail Pressure: I am not sure what to change this yet, or have the axis! Ignore this for now, I will come onto this later.
Rail Pressure Precontrol: This map would need changing for preparation for a rail pressure increase I think. This is the next change I would like to make.

The question: I want to modify this map to accommodate 1400 BAR. I think it is best to change Axis Values 1100, 1300 to 1200, 1400.

The values for 1200 and 1400 will need to be calculated across the RPM range.

Is there a formula for this calculation, or is it trial and error? I think it will be very fun trying to drive with PP2000 open with me trying to get my ECU to request 1200/1400BAR at every RPM and seeing if it is working correctly whilst driving down the local dual carriageway ;) so if there is a mathematical way of doing this, great, if not, I'll try trial and error!

I have attached a image. Please see what you think of these values as a 'start point'. This is by estimating based on the differences between the RPM points and the pressure points. My god it is hard, they are almost completely random!

That's not precontrol map...

If you are changing the pressure slightly without changing IQ you do not have to tune precontrol map.
You are increasing 50bars from original - that's nothing so, tuning precontrol map is not needed.

You will notice diagnostic changes only when you increase IQ and rail pressure s little bit more than just a bit and when you do complete tune and your car start to accelerate very faster than before, than your rpm will rise very fast and your precontrol value will have to close faster because your ecu will request pressure faster threw rpm range than before and so on...That's when you decide to do tune like complete picture...

When you do that partial project, you will have to start all over again, because you will start facing experiences like i described.
There is much more than that.

Ah I understand, thanks. Which map do I have here then?

edc15c2-3d-graphs-units-hw-0281010877-sw-1037353776-t54

In WinOLS, the map looks identical to the precontrol map on this thread. The factors of the values on mine may be set incorrectly.

I'll try and build a bigger picture. I think my first job will be to graph each of the limiting maps and decide on an IQ, Rail pressure, Boost that I would like to acheive and then figure out how to get there.

hi there,
please always post your maps in WinOLS screenshot, xls is clumsy than I can tell you more from picture data.

When you post the results it is good to post values and 3d picture. If you want me to look in your file for that map you have in picture,
post me the address, i won't look it map by map to find that values on the picture.

That is definitely not precontrol.
Precontrol starts at 200bar...

You could consider also looking for maps with axis markers.

How do you thing the ecu would calculate pressure in idle for around 300bar? ;) when your map starts at 900bar?

I have look at your original, I can give you an address,
but that wont give you the skills, you decide whether you look or i post you the address.

This is good example to get feeling about finding maps, but this map is recognised by winols,
next step would be: finding maps that are not recognised and the axis values
are not near the maps...

This will help you a lot.

Ah yes, the map does go down to 200 BAR :) I only used the top few BAR measurements in Excel to calculate what I would need for 1200 and 1400 BAR. Don't worry, I am sure I have the correct map for precontrol. I will post a picture here so you can also see I have the correct map.



I still need to find Axis for some rail pressure maps and also the SOI maps.

If you take SOI as an example. I found the SOI map, no problem, but not the Axis.

I know the Axis I need are 16 x 16, and is IQ x RPM. I know that these are in the beginning of the MAP area.

But they are many viable axis in the start of the map area. Look at the second picture I upload, there is two viable 16x Axis for IQ. Guessing which is for SOI would require experience.

That's what I am talking about,
partial map in "xls" is not very friendly...

That would force me to look values not the map, and that take some time.
Always post correct and whole data, it is misleading if you cut off part of the map and you put it than in XLS :).

Yes now, you have complete map. It is correct.
Did you set up factors correctly...

You have to get xx.yy% (precision 2) factor 0.01
About axis, I will have to check your file again, when i get some spare time.

Yep I understand your busy and this website is done in your free time... so that is apprecaited.

If it helps I could export my winols project or map pack and upload them in my original file thread.

Correct ;) yes, you can upload, your .kp file,
I can check your maps and comment or point you
to the right direction.

post839#p839

If you look in the image above:
(again)

http://www.ecuedit.com/resources/peugeot-406-2002-2-2-hdi-manual-bosch-edc15c2/299

It shows two different IQ axis at beginning of map area. How to tell which is for SOI? ;)

If you look a little further above the selected area, there is two different RPM axis too...

Anyway take a look when you get some free time :) I won't have time to play until after the weekend now anyways

rlees85, I've poking around your bin :geek: , and appears I have found a map that has an axis data following the map data.



X axis seem to be RPMs, and Y axis is IQ (factor 0.01).

How wrong am I? :?: