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+--- Thread: How to modify SMOKE MAP like pro in EDC17C64 (/Thread-How-to-modify-SMOKE-MAP-like-pro-in-EDC17C64)
How to modify SMOKE MAP like pro in EDC17C64 - samadsamad - 04-19-2026
Hello everyone,
I hope you're doing well;
I am training to devlop my skills in diesel remapping by practicing on EDC17C64 file, I extracted some map (drivers wish maps, Torque to IQ, Torque limit, bosst map, boost limit map, SOI, DOI, Smoke map.....), I've made some changes to it, until I came across the smoke map and I didn't know exactly what to do on it.
Please, can anyone help me and show me the correct way to modify this Map like Professionel.
Best regard.
RE: How to modify SMOKE MAP like pro in EDC17C64 - M4th_R1der - 04-19-2026
Hello
The smoke map acts as a smoke limiter by restricting the maximum injection quantity (IQ) based on available air mass.
Reducing the limiter values allows higher IQ. Typically, 16 is considered the safe limit, while at 15.5, noticeable smoke may occur.
The most difficult maps to modify are TI and SOI. You should not apply percentage changes to these tables. You have to define it with precision if you want a good stage.
RE: How to modify SMOKE MAP like pro in EDC17C64 - Victor94 - 04-19-2026
(04-19-2026, 07:20 PM)samadsamad Wrote: Bonjour à tous,
j'espère que vous allez bien.
Je m'entraîne à la reprogrammation moteur diesel en travaillant sur des fichiers EDC17C64. J'ai extrait plusieurs cartographies (cartographies personnalisées, couple à IQ, limite de couple, cartographie de suralimentation, limite de suralimentation, SOI, DOI, cartographie de fumée, etc.) et j'y ai apporté quelques modifications. Cependant
, je suis bloqué sur la cartographie de fumée. Quelqu'un pourrait-il m'aider et me montrer la méthode appropriée pour la modifier correctement, comme un professionnel ? Merci
d'avance.
The smoke map is just an injection limiter. If you don't want to be restricted by it, you lower the values and regulate the injection via the TQI. There are several strategies; everyone applies their own. I leave the original values at partial load and limit everything at high load. I control the injection on the TQI. If it smokes, you increase the values again to restrict the injection.
RE: How to modify SMOKE MAP like pro in EDC17C64 - samadsamad - 04-19-2026
(04-19-2026, 08:12 PM)Victor94 Wrote:(04-19-2026, 07:20 PM)samadsamad Wrote: Bonjour à tous,
j'espère que vous allez bien.
Je m'entraîne à la reprogrammation moteur diesel en travaillant sur des fichiers EDC17C64. J'ai extrait plusieurs cartographies (cartographies personnalisées, couple à IQ, limite de couple, cartographie de suralimentation, limite de suralimentation, SOI, DOI, cartographie de fumée, etc.) et j'y ai apporté quelques modifications. Cependant
, je suis bloqué sur la cartographie de fumée. Quelqu'un pourrait-il m'aider et me montrer la méthode appropriée pour la modifier correctement, comme un professionnel ? Merci
d'avance.
The smoke map is just an injection limiter. If you don't want to be restricted by it, you lower the values and regulate the injection via the TQI. There are several strategies; everyone applies their own. I leave the original values at partial load and limit everything at high load. I control the injection on the TQI. If it smokes, you increase the values again to restrict the injection.
I am search the best way with best torque only in high range without any smoke or damage
RE: How to modify SMOKE MAP like pro in EDC17C64 - AliantAuto - 04-19-2026
(04-19-2026, 07:20 PM)samadsamad Wrote: I've made some changes to it, until I came across the smoke map and I didn't know exactly what to do on it.
Please, can anyone help me and show me the correct way to modify this Map like Professionel.
Best regard.
First - if you don’t understand what you’re changing, it’s better not to touch it at all until you grasp the logic behind it.
Second - you’ll hear all kinds of advice, but the most sensible approach is to follow what Bosch, the true professional in this field, has already done. The original logic isn’t accidental, and every change should respect it, not break it.
When it comes to smoke-related (lambda) maps, in most cases it’s enough to adjust just one - at most two, depending on the specific software.
I’ve reviewed hundreds of files, and the same mistake keeps appearing - people modify dozens of maps without a clear reason.
The simple truth is that almost no one reads the documentation or truly understands how the systems work...
RE: How to modify SMOKE MAP like pro in EDC17C64 - nilshn29 - 04-20-2026
(04-19-2026, 07:20 PM)samadsamad Wrote: Hello everyone,
I hope you're doing well;
I am training to devlop my skills in diesel remapping by practicing on EDC17C64 file, I extracted some map (drivers wish maps, Torque to IQ, Torque limit, bosst map, boost limit map, SOI, DOI, Smoke map.....), I've made some changes to it, until I came across the smoke map and I didn't know exactly what to do on it.
Please, can anyone help me and show me the correct way to modify this Map like Professionel.
Best regard.
There are conversion tables for Diesel Lambda into AFR on the internet. If you are doing a remap on a ECU you can calculate your desired boost for the fuel you inject for the target AFR (lets say AFR 16,5, about Lambda 1,14), so you at least need that Lambda value to not be limited by the smoke limit maps. With that info you can prepare your smoke limit maps in the needed columns. You can read out your actual air mass, actual lambda value and engine speed from your datalog and re-adjust your smoke limit maps realistically if needed. Keep in mind that you got correction factors on the lambda maps and that the value still could be too high but yeah like @AliantAuto already mentioned, i recommend reading the ECU Funktionsrahmen.
