AFR Punto 1.3 Mjt 70CV

[Fede78]

Hi, I did a log with EDF and doing the accounts if I'm not wrong I have a AFR to another regime of 20... Possible?

These data starting sinking in 5th gear from about 1650 rpm...
The mg diesel I have them already? converted by mm3 x 0,85


Rpm------- mg air-------- mg diesel----- AFR

1655 376,5 15,24 24,70
1681 425,0 28,17 15,09
1722 464,0 32,15 14,28
1776 515,5 34,02 15,15
1832 568,0 41,10 13,82
1905 641,5 40,71 15,76
1986 715,0 40,15 17,81
2075 741,5 39,92 18,57
2159 745,5 39,83 18,71
2242 751,5 39,44 19,05
2327 759,0 39,27 19,33
2405 753,0 39,10 19,25
2490 744,0 38,90 19,12
2570 742,5 38,21 19,43
.....
3242 676,0 34,30 19,70
.....
3819 642,5 32,05 20,04
3975 630,5 31,52 20,00
4125 617,0 30,84 20,00
4185 615,0 30,45 20,20


As ever the deal? of diesel decreases by cos? so?

[admin]

E-mail the map ori and mod that let's take a look

[mariodarkblue]

Hello...I state that I am not a great connoisseur of the marelli mjet...but...the deal? the air intake seems like a p? a little...for example on the jtd and mjet (bosch edc15 edc16) arrives to 1,200, and in some cases even more (large turbine and egr closed)...
With regard to the mg that you have written, are the ones that the ecu tells you...but not ? said that is what they inject...I'll explain: if the map ? ori, the amount? are right...if the map ? modified by acting on the timing and rail pressure...that direction is going to distort...you have not indicated if the map ? the original or modified! If original, I repeat, I see the mg in the air a p? low...but I do not think an AFR cos? high...sure runs nice "lean" diesel and if the original map does not smoke...
PS: for afr "air" on diesel most sources indicate 14.5...obviously the more the afr becomes high, less fuel will come from? injected....the afr drops more fuel will come from? injected, the greater the power, the greater readiness of the turbo and more performance...against, lowering too much the afr...you'll have smoke, heat, (part of diesel continues to "burn" in the exhaust manifolds and turbine) and a car that runs "choked"...

[Fede78]

The machine has the map, panel filter K&N, turbine, plus with impellers of derivation renault dci, pressure 1.45 peak and 1.25 approximately constant.
I also changed the map to 065D70 that reading a guide should be on the map "Lambda for High IQ" for? I don't understand why? the value of the map goes from 2 to 1 ???.
I have decreased but I don't know..

The fact of the deal? air sucked those data are those of the test sinking in 5th gear.
If I pull all the gears I have a peak of 818 mg... anyway cala.

The other thing that I did not explain myself well ? that doing the test as I said before, the machine sfumacchia a bit but not excessively.
If instead of shooting all the gears to say over 4000 rpm remains the cloud of smoke for maybe 500 meters...

So, being the map mod in the diagnosis the value of the mg ? real?

[mariodarkblue]

hi faith...I'll reiterate that the marelli mjet know...Anyway, it seems strange that the air sucked in both cos? low (but can? be I'm wrong....xk? I reference jtd and mjet edc16)...
For the address values, exact: if the map you touched on the times, and the rail, the mg will not be real...but the real injected will be more?...

[Fede78]

But then, the ecu how does it know how much fuel to inject? Ok for the speech of the rail pressure ingannandola with a module...
But if you increase the map the pressure the ecu should not handle alone the amount? of diesel?
The Cio? not ? the driver wish that handles the requests of diesel?

About Driver Wish... as you convert from Nm that I have in the map of the pedal point in the corresponding mg of diesel?

The map of lambda works even if the car has a lambda sensor? What I seem to have the 75 and 90...

I found a table where it shows the lambda value and the respective AFR

[mariodarkblue]

Hi faith..I repeat..I always talk about edc15...if you increase the prex rail, the ecu what does it do?EXAMPLE...see in the dw that have 50mm3 of diesel...goes to see if ? granted in the limiters torque-smoke ..if ok...it goes in the map of the rail...and sees to that the iq of those laps that pressure must be given to the rail..well, if we increase the pressure. the ecu only knows that the pressure ? the most high..then it goes in the map time and opens the injectors x the time that corresponds to the bp prex rpm...x? attention...the times were scaled x the "old" pressure...before we further pay rise from the map!having turned up the pressure...in parit? of time of the injection, will be? injected more fuel! here is the xk? those values are no longer correct..
For the map, lambda, at least on edc16, I know that ? the true map smoke limiter...basically the values that you find in the map have a conversion factor that indicates the afr. the lambda probe n? the 75hp n? the 90hp, they have it! Look at the advice I can give you, without knowing the marelli...
Parts from scratch...make the driver wish map the pedal), then go to unlock the limiters torque. Now, since as said we do not know the functioning of the maps lambda, we try to provide diesel fuel for the cross-streets..***** and?tricking the ecu! for example, you calculations how much fuel you need and try to dividerti in the same way the increase of heating oil that you need between the map rail and map with the times...

[Fede78]

Is the machine ? already mapped, it was only to understand what is really the AFR, unfortunately, marelli a bit more? complicated or let's say less known... and then some maps are not so? the immediate.

As I said before I do not understand that correlation c'? between Nm of torque request from the map the pedal and the actual mg of diesel fuel required. The Cio? I can set 250 Nm of torque... but how many mg equal?

[mariodarkblue]

[Fede78]

Ok, so expect some expert!

[munro]

without a star in waiting for the thanks of who knows who....my advice ?(if you want to listen to it) to see the ceiling in mg or better in mm3 of fuel that is injected, for example with the foot pedal that requires a maximum request of nm....and l? do a simple linear conversion between the two values....for example, if 2500 rpm from the DW requires 250nm of torque, and in that transitional you have to log 39mg of diesel..these two values are to be divided between them in order to find a correlation quite true of the relationship nm>iq.....some do not ? the more precise because there are plenty of variables that affect iq..? in my opinion ? a good way to begin to understand something without groping in the dark waiting for who knows? what help or damos solver.......