Peugeot 406 2.2HDi EDC15C2 MAFFLESS TUNE

by **genadko** » Sat Apr 18, 2020 4:25 pm

Slava111 wrote:
wld wrote:Oh, now I see !
Software from 2.0 8v 110HP engines has a nice, fat 16X16 MAP smoke limiter, which has been replaced with the 2x2 one on 2.2hdi engines. You cannot get a good smoke map with just 4 values, so I guess this mod should not be done on street cars.
The MAF is big on those engines anyway so it should be good for over 200HP.

Please, tell me the start adress of the MAP smoke limiter. I have spend a lot of time trying to find this map without any result. My car is Peugeot 307 2.0HDI 107HP, my firmware is in the attachment.

Hi Slava!
It is at address 687E6.

by **genadko** » Tue Apr 21, 2020 2:30 pm

Hi guys!
First of all I apologize that posting my post one after another but want to be helpful.
I think we're wrong. At first, I was mistaken.The 2x2 map at 68BAE mentioned above is a fuel limiter in function of atmospheric pressure. The real smoke limiting map as a function of turbo pressure is 6x6 at 64078 (see Peugeot file). I realized this by looking at the Hyundai Damos and the attempts of my Mitsubishi, which is powered by a Renault 1.9 DID engine and ECU is EDC15C3.

WBR

by **zapdus** » Sat Jan 02, 2021 11:37 pm

ecuedit wrote:
wld wrote:Oh, now I see !
Software from 2.0 8v 110HP engines has a nice, fat 16X16 MAP smoke limiter, which has been replaced with the 2x2 one on 2.2hdi engines. You cannot get a good smoke map with just 4 values, so I guess this mod should not be done on street cars.
The MAF is big on those engines anyway so it should be good for over 200HP.

Maybe hard to believe but 2 x 2 is enough. Because if you take for Example Mercedes Benz diesel cars are mostly MAP based. And if you open for example 5 different bins from 5 different cars/engines, you will see that MAP smoke limiter as it is is pretty linear.
You can decide how your axis for rpm will start and end and by that you can decide y=kx+n what will be your k and how steep that line will be until it stops at the higher rev axis value, and at the higher rpm value you stop where you wish your AFR will be good enough not to smoke, but you calculate that based on volumetric efficiency of engine and other factors.
I hope i explained well. By that strategy you can have nice MAP based car on the road with pretty good efficiency.
Mine 2.2 HDI took average 6.5L-7.4/100km combined normal ride.

So you put range of rev :revX revY where revX < revY close enough but that revY stops from point where you wish full power...

Sample picture attached.

Hey
I took a while to understand this but I can now understand !!!
That way is very good

by **zapdus** » Mon Jan 04, 2021 3:40 am

genadko wrote:
lostsoul wrote:testing on my renault 1.9dci and looks promising... :D
Still not find the smoke limiter by map...

In Renault firmware SL by MAP is next to Warmup enrich map but 3x3 not 2x2 like in Peugeot firmware. ;)

Hey
I tune cars and I have here renault laguna 1.9 dci 120
I think this one has smoke limiter MAP based at 7347A 6x6
Can you check it?