IQ that does not increase on the Fiat 1.9 JTD Edc15c5

[biondo83]

I had a bit of time and this weekend I got to play with the family car (Fiat Multipla 1.9 JTD 105cv edc15c5).
I set myself the goal of wanting to inject IQ = 79mm^3 of fuel by changing the only 3 maps are related to each other, and that they should act on the IQ: map the pedal, smoke limiter and torque limiter. The values read in decimal, multiplied by 0.01 and should return the mm^3.
From diagnosis, to?, the quantity? total diesel ? always around 55-56 mg/i which should correspond to approximately 0.85*55=65mm^3
Also by decreasing/increasing values of the 3 maps, the amount? total diesel ? always 55-56 mg/i.
I tried to scroll in the map, but I have found none of the limiters IQ that characterize the edc15c7.

I have lost something that blocks the IQ?


The original file ? been included in the database, the time is:N?#8


Thanks

[Gia]

The url 07b272 (after the map the pedal) should be a limiter iq for? ? set to 66mm3 so there must be some other

[biondo83]

The url 07b272 (after the map the pedal) should be a limiter iq for? ? set to 66mm3 so there must be some other

Thank you for the intervention? the map serves only to facilitate the ignition at low temperatures.

[Gia]

I thought that was a limiter based on the temp. Have you Already tried to mod? Serving 66mm3 in the starter?...,. C should be a limiter according to the press turbo

[biondo83]

I thought that was a limiter based on the temp. Have you Already tried to mod? Serving 66mm3 in the starter?...,. C should be a limiter according to the press turbo

If you make the case to the number of turns, goes from 0 to 750 rpm and the temperature diesel are negative then ? the equivalent of the map of the TDI engines that have cold start problems. At least this ? there? I have deduced by reading the values in 2D.

We accept suggestions and guesses what? as soon as I can do the test

Although it is a ecu very old it seems more? difficult than expected

[biondo83]

Also this weekend I made several tests: modified some panettone in the map with decimal values "2500-3000-4000-5500" but with a negative result. The IQ ? remained unchanged

Any advice?

[SandroMarciano]

You say here that it seems to me the most? appropriate.

The diagnosis is wrong with the unit? measurement, she always did, 55-56 are mm^3/non-mg/i.
You'll probably ? missed a limiter of fuel f(T_water), if I remember correctly, 8x1, but don't expect to go much further, this motor is provided with injectors very small...

[biondo83]

You say here that it seems to me the most? appropriate.

The diagnosis is wrong with the unit? measurement, she always did, 55-56 are mm^3/non-mg/i.
You'll probably ? missed a limiter of fuel f(T_water), if I remember correctly, 8x1, but don't expect to go much further, this motor is provided with injectors very small...

Are you referring to the limiter diesel at address 7BC5E?

[SandroMarciano]

in addition to that I would increase also *7BC22 considers that the value that indicates the diagnosis in the IQ also takes into account the preiniezione, then the value, which then tells you I can not? never be esattamentee one of the limiters... let me know how it goes after these touch-ups...

[biondo83]

Thanks for the info. As soon as you back the time you update it.
I would have another question, if I wanted to set a constant value for the reading of the MAF (if disconnected), do you think that by acting to address 079C58 with a constant line, could that work?