View The Full Version : edc16u1 - limitation diesel and turbo more than the threshold set by the ecu
hi guys, as the title suggests, I would like to overcome the limits imposed by the ecu, using the bits out of the driver. (In the sense that exceeded a certain threshold, also aumentanto limiters and bits of classic diesel and turbo, these ecu go into protection)
I enclose a map ori as an example
thanks
What you want to do not understand. These cars if you know how to touch them must be really strong without doing strange things
What you want to do not understand. These cars if you know how to touch them must be really strong without doing strange things
I have to go over.... I have already? moddato maps of 1.9 cc. more than 350 nm, with the motor stok, but I have to prepare for a crowd more? large to exceed 2.5 bar real, and of course, the diesel fuel must stay behind.
You have this information on the bits?
Thanks
guys riformulo... you Know the limiter AFR on this ecu where is it located??
Hello
3 lambda map start at DFEC0.
Greetings
Hello
3 lambda map start at DFEC0.
Greetings
Increasing the lambda increase in the diesel fuel, and automatically increase the turbo... dar? still more problems with the limitation. Explain better, thanks
You need to lower lambda values to allow injecting more diesel.
You need to lower lambda values to allow injecting more diesel.
if down the values of lambda, smagrisco the engine and breaks down... any other solutions?
cicciogsr
21-02-2015, 20:40
the maps lambda in the diesel engine does not smagriscono as in gasoline, is used as a limiter fumosit? so if you understand what contain the tables you can increase the flow rate of the diesel, of course, adapting all the rest of lambda 1 in the diesel is equivalent to having an afr of 14.5 for this the user tells you to decrement the maps
the maps lambda in the diesel engine does not smagriscono as in gasoline, is used as a limiter fumosit? so if you understand what contain the tables you can increase the flow rate of the diesel, of course, adapting all the rest of lambda 1 in the diesel is equivalent to having an afr of 14.5 for this the user tells you to decrement the maps
but I don't know what to get the maps lamda with the limitation...if you can be more? precise
thanks
At 4000 rpm and 1000 mg/hub of MAF you can see 1.589 value of lambda.
1.589x14.5 is an AFR of 23.0405.
1000/23.0405=43.402 mg/inj of fuel allowed.
At 4000 rpm and 1000 mg/hub of MAF you can see 1.589 value of lambda.
1.589x14.5 is an AFR of 23.0405.
1000/23.0405=43.402 mg/inj of fuel allowed.
Are you telling me that ? a problem of stoichiometric? If the mixture ? lean I can understand that it can go into protection. But in this case we have a miscelta fat, and then I don't understand what you mean. Can you explain to me why? of this your reasoning?
There is no problem with stoichiometric ratio.
I was telling how to calculate fuel limitation.
Diesel engines run lean. For example 23.0405 AFR, this is lean.
If you want more fuel with the same air mass, then you need to run richer.
How much air mass is your engine running at 4000 rpm?
Have you done any logging?
There is no problem with stoichiometric ratio.
I was telling how to calculate fuel limitation.
Diesel engines run lean. For example 23.0405 AFR, this is lean.
If you want more fuel with the same air mass, then you need to run richer.
How much air mass is your engine running at 4000 rpm?
Have you done any logging?
I did not do the log data . I can tell you that the damage affecting the 1:58 bar overpressure and limp it home!...
and now I can not read the values because the car is no longer in my hands
how did you solve it?
Hello
I am understanding that you have 2 problems: an overboost and IQ limiter.
For an overboost you need to modify the turbo and vnt maps.
For IQ limitation you need to modify the lambda maps.
Try to open vnt vhen an overboost. And do not request too much boost at low rpm.
Hello
I am understanding that you have 2 problems: an overboost and IQ limiter.
For an overboost you need to modify the turbo and vnt maps.
For IQ limitation you need to modify the lambda maps.
Try to open vnt vhen an overboost. And do not request too much boost at low rpm.
maps turbo are ok . How do I change the lamda to prevent the recovery data from maps iq ?
megamind
10-03-2015, 09:27
Hello
I am understanding that you have 2 problems: an overboost and IQ limiter.
For an overboost you need to modify the turbo and vnt maps.
For IQ limitation you need to modify the lambda maps.
Try to open vnt vhen an overboost. And do not request too much boost at low rpm.
For opening vnt must decrease the value?
For opening vnt must decrease the value?
what criteria should be used to decrease the lamda according to iq ?
For maps turbo , I put the original values and goes into an overboost ... because the pressure rises because of the same maps iq .
Yes, For opening vnt you must decrease the value.
If you have an overboost with original file, then could be stuck vanes.
For example, the AFR target of 17:1 without the smoke.
If you put 2100 mbar at 4000 rpm, you are near 915 mg/hub of the air.
915/17=53,8 mg IQ
You change the lambda from 1,589 to 1,172 to allow that IQ.
Yes, For opening vnt you must decrease the value.
If you have an overboost with original file, then could be stuck vanes.
For example, the AFR target of 17:1 without the smoke.
If you put 2100 mbar at 4000 rpm, you are near 915 mg/hub of the air.
915/17=53,8 mg IQ
You change the lambda from 1,589 to 1,172 to allow that IQ.
With my setup at 4000 rpm The map iq 8200 mmg ( equivalent to an increase of 2563 points ) , while on the lambda always at 4000 rpm we have values 1589 points ( original because I have not yet touched the lambda ) . The car does not smoke so much ... but I do fault what have explained above .would you do me the proportion who say so in practice ? I know I understand better .
Thank You
?In which map have you put 8200? ?Driwer wish, torque limiter or NM to IQ conversion map?
Well, 8200 should be 82 mg of IQ, factor:0,01.
?In which map have you put 8200? ?Driwer wish, torque limiter or NM to IQ conversion map?
Well, 8200 should be 82 mg of IQ, factor:0,01.
to when Increased map qi to the 8200 AFTER the Maps Lamda , make the cut ... let me Calculation More explicit and not directly the result Surrounding the final . you were talking about this map iq or for which the ratio afr ? Street Address? Thank You
Let?'s make another example.
In TL at DDF04 you request 314 Nm at 4000 rpm in the last row.
From NM to IQ map at E0796, 314 Nm need or 53.9 mg IQ at 4000 rpm.
In the Lambda at DFEC0 you can see 1,589 at 4000 rpm supposing MAF=1000 mg/hub
But 1000/1,589/14,5 = to 43.4 mg IQ allowed and you want 53,9 mg IQ.
Then the lambda should be 1000/53,9/14,5 = payments are $ 1,279
Of course, Driwer wish values need to be higher than the TL values.
Let?'s make another example.
In TL at DDF04 you request 314 Nm at 4000 rpm in the last row.
From NM to IQ map at E0796, 314 Nm need or 53.9 mg IQ at 4000 rpm.
In the Lambda at DFEC0 you can see 1,589 at 4000 rpm supposing MAF=1000 mg/hub
But 1000/1,589/14,5 = to 43.4 mg IQ allowed and you want 53,9 mg IQ.
Then the lambda should be 1000/53,9/14,5 = payments are $ 1,279
Of course, Driwer wish values need to be higher than the TL values.
Excuse me , but do not understand where you find the value of 53.9 mg on the map IQ E0796. I Checked at 4000 rpm Values Are Different ! thanks
The amount on the map turbo where you find her?" You could write the addresses and mg iq you say ? I'm having trouble following you with values
E0796: NM to IQ
factor 0.01 and precision 1. Then you see mg.
EC378: turbo
factor 1. Then you see mbar.
But MAF is mass air flow. You need to calculate from boost.
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