ecuedit wrote:

Well then apart from defap I'm doing nothing of it. Did you ever do those modifications o a 406?

you should get rid of your EGR to.

Well,I may do that too, only removing it from the software and plugging it. I want to leave it there, in case I may need it to pass the emissions test.

yes you can leave all as it is,
after changing map, unplug and block the tiny tube that goes to the valve, block the EGR tube that goes to the inlet manifold.

ecuedit wrote:yes you can leave all as it is,
after changing map, unplug and block the tiny tube that goes to the valve, block the EGR tube that goes to the inlet manifold.

I'll do so.

Ok so news time!
I've been to visit ecuedit aka Srdan, our admin, yesterday. He was extremely kind and helpful and I need to thank him a lot. Thank you Srdan!
He made me save a good hundred euros on my injectors, which now are like brand new. The bad news is that my turbo needs replacing / repairing :cry:

We compared our cars which are exactly the same apart from the age and the exterior color. His is a missle above 2000 rpms. A real missle. Mine dies at 3000-3500 rpms, but it feels better to drive below 2000 rpms. Could this have something to do with the fact I usually drive the car in that RPM range while he drives it at at least 2000 rpms? We do not know. His maps almost does not affect the <2000rpms range.

He explained to me lots of stuff on how to remap, how to rate maps and how to compare them. He showed me why most of the maps that lay around for the 2.2HDi are crap.
Now I am going to start remapping my car. What to do?

Ok so I have Winols, you'll need it. It is the best software.
I also have my map read with the Galletto1260. It is also defapped using ECUSafe. This should be ok since ECUSafe works well on EDC15C2s ECUs. On other ecus this may not be good and defapping manually the file could be necessary.

Next step is locating all the maps and understanding what they do. This is the crucial and maybe the most difficult part. I open my file in Winols and press F. It will find some maps for me. This should be enough. But the maps require a lot of knowledge to be recognized as the correct ones. Winols cannot be miracolous.

Maps are indicated, in text mode, like this: (correct me if I'm wrong please!)
MARKER, NUMBER OF COLUMNS, 00000, DATA, 00000.
Markers usually start with 50. One I found was 50022, if I recall correctly. From the number of columns, the data inside the map and the info you can gather from the web one can recognize what it is that that map controls in the ECU software. You have to select the right number of columns to be able to see it properly. All maps are seen in 16 bit mode but the EGR and TURBO switches which are in 8 bit mode. Many info can be gathered from these topics:
maps-needed-for-tuning-edc15c2-t29
edc15c2-3d-graphs-units-hw-0281010877-sw-1037353776-t54

Later I'll try to open my file and locate as much maps as possible. I'll do so step by step so everyone will be able to learn as I learn.

I hope you enjoyed the ride in a 170hp 2.2 HDI :D

RPM freak wrote:I hope you enjoyed the ride in a 170hp 2.2 HDI :D

I did! But we found mine is better below 2000 rpms. Any idea why?

Hi there,
I know why,

My low pressure fuel pump inside of fuel tank can not deliver as much fuel as I would like to at those low revs
(pressure in the fuel system before the Bosch pump is not stable enough).

This could be compensated a little with rail pressure precontrol value map,
but ECU does it own calculation based on max rail pressure achieved and if you tune the map too much,
ECU will take just as it needs, nothing more (unless you burn out your rail sensor before that).
That's tricky map to tune (will talk about it later in another topic).

My largest injection quantity is till 3000rpm and than drops.

Height pressure Bosch pump in that car can not suck fuel by itself.
Fuel has to be delivered by fuel pump from the fuel tank - we were talking about.

I am looking for new Bosch fuel pump inside the fuel tank.

Stock fuel pump operates at 250kpa and it is able to deliver 150L/h of fuel.
My car needs more. Calculation says that 180 L/h will be enough. I will probably stay at 250kpa (thinking about 300kpa & 180L/h).

This could be useful for others that would like to tune their cars:

Original - Fuel pump Peugeot 406 2.2 HDI ENGINE: 4HX, POWER 98kw
0 986 580 216

Operating pressure 250kpa
Flow Rate 150 L/h
##################################################################

For tuned car = 250kpa or 300kpa
Flow = 190 L/h (at least 180L/h)

Suitable pump for tuned car:

0 580 464 098 (HYUNDAI: Santa Fe) - 250kpa, 184 L/h

I am attaching the Bosch catalogue.

ecuedit wrote:Hi there,
I know why,

My low pressure fuel pump inside of fuel tank can not deliver as much fuel as I would like to at those low revs
(pressure in the fuel system before the Bosch pump is not stable enough).

This could be compensated a little with rail pressure precontrol value map,
but ECU does it own calculation based on max rail pressure achieved and if you tune the map too much,
ECU will take just as it needs, nothing more (unless you burn out your rail sensor before that).
That's tricky map to tune (will talk about it later in another topic).

My largest injection quantity is till 3000rpm and than drops.

Height pressure Bosch pump in that car can not suck fuel by itself.
Fuel has to be delivered by fuel pump from the fuel tank - we were talking about.

I am looking for new Bosch fuel pump inside the fuel tank.

Stock fuel pump operates at 250kpa and it is able to deliver 150L/h of fuel.
My car needs more. Calculation says that 180 L/h will be enough. I will probably stay at 250kpa (thinking about 300kpa & 180L/h).

This could be useful for others that would like to tune their cars:

Original - Fuel pump Peugeot 406 2.2 HDI ENGINE: 4HX, POWER 98kw
0 986 580 216

Operating pressure 250kpa
Flow Rate 150 L/h
##################################################################

For tuned car = 250kpa or 300kpa
Flow = 190 L/h (at least 180L/h)

Suitable pump for tuned car:

0 580 464 098 (HYUNDAI: Santa Fe) - 250kpa, 184 L/h

I am attaching the Bosch catalogue.

Interesting, but I do not understand it fully. If you put on the standard 133hp map it'll go well again below 2000rpms? Because the tuned file has almost nothing changed before those revs, so it should be the same, shouldn't it?

They are changed from 1250.

Ok so I had a play with WinOLS today, about an hour. I located 4 maps (x2):
6111F EGR switch
61120 Turbo switch
61e3e EGR map (this looks very strange compared to the map in the EDC15C2 tuning guide posted by RPM Freak)
67D46 Torque limiter

What to locate now?