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Technical IAW ECU Live Mapping & Tech Info
I would like to understand what the values are, especially in fuel map where there are negative values?
I thought to find positive values corresponding to the duty cycle of injector but with negative value, I don t understand.
The map is 100% correct! It does have negative values, it is only a correction map, read the beginning of the thread on how the fuel is calculated. Having injector duty cycles directly in the main fuelling map is the approach probably from the 80-s. In fact, if you zero out this map, the ECU would still work quite OK.
More or less, where the "original value" is a value that depends linearly on the MAP sensor reading, more MAP more fuel. Then corrected by this map, -128 (in raw numbers) is -50%, 127 is +50%. Then lambda correction is applied, but not in all working conditions (for example, not at WOT, or high load in general).
to me with xdf of the 16f provided here and the bin attached by negative values as in Pasto but with other bin also extracted directly from eprom 16f the values are positive and modifiers work perfectly. the thing seemed odd to me so I never used the attached bin. maybe a reason exists?
woj I asked a question earlier on how to give a purpose to the maps found, what can you tell me about?
and if possible also how to find the byte error to disable them on 8f
Very thanks
woj I asked a question earlier on how to give a purpose to the maps found, what can you tell me about?
and if possible also how to find the byte error to disable them on 8f
Very thanks
you're right 100% woj checking xdf of the 16f
he calculated the petrol map with +128 and therefore has no value values
Negatives.
also ECM makes this calculation +128 for gasoline
therefore I deduce that it is incorrect and that instead it must be only an X value of conversion because in fact it is only a correction value and not a base one
ooooook
he calculated the petrol map with +128 and therefore has no value values
Negatives.
also ECM makes this calculation +128 for gasoline
therefore I deduce that it is incorrect and that instead it must be only an X value of conversion because in fact it is only a correction value and not a base one
ooooook
Not much I can tell you, you have to understand assembly, the CPU architecture, general design of ECU programs, engine control theory and then you try to match what you see with what should be there. The good starting point is always the diagnostics interface, you can find it by searching for the ECU ISO code, and then matching the engine variables from the documentation of the interface.
Otherwise it is really only about hard and long work and hacking it.
Hello
I worked on map and I would like to know how the dash pot is processed in the map?
In "cut off"phase (with negative variation of throttle position sensor and high rpm), the injection is cutt of but at certain rpm, she s go on to stop fall of idling.
Is there a specific map to manage this? or is there only ignition in cut off and fuel déceleration with TPS- ?
Thanks fo answer
I worked on map and I would like to know how the dash pot is processed in the map?
In "cut off"phase (with negative variation of throttle position sensor and high rpm), the injection is cutt of but at certain rpm, she s go on to stop fall of idling.
Is there a specific map to manage this? or is there only ignition in cut off and fuel déceleration with TPS- ?
Thanks fo answer
Hello and Happy new year
I did my first programming to run with E85.
I reviewed fuel main map, cranking, ignition PT and WOT, and fuel deceleration (TPS-)IAT.
For the first time I am Happy, the engine runs very well. I need to refine the cold start phase and cut off phase.
It s on track
I did my first programming
to run with E85.I reviewed fuel main map, cranking, ignition PT and WOT, and fuel deceleration (TPS-)IAT.
For the first time I am Happy, the engine runs very well. I need to refine the cold start phase and cut off phase.
It s on track
Hello,
I am looking for the closed throttle fuel cut-off deceleration map. I know that is one 16 cellular map in IAW16F but I have some difficulties to locate it.
The engine is running very well with E85 but the engine turn off at the dash pot, there is not enough fuel and I need to increase
Thanks for helping
I am looking for the closed throttle fuel cut-off deceleration map. I know that is one 16 cellular map in IAW16F but I have some difficulties to locate it.
The engine is running very well with E85 but the engine turn off at the dash pot, there is not enough fuel and I need to increase
Thanks for helping
hello everyone
Just to say that my seicento is running since 3500Km with E85. After several tests of mapping,
I arrived at something correct that works very well.
I am very satisfied and I still thank woj for his help for sharing information
My mother has a fiat punto with an IAW 18F and I would have liked to get an xdf for this ECU.
If someone wanted to share it, it would be super cool for me.
Many thanks
Just to say that my seicento is running since 3500Km with E85. After several tests of mapping,
I arrived at something correct that works very well.
I am very satisfied and I still thank woj for his help for sharing information
My mother has a fiat punto with an IAW 18F and I would have liked to get an xdf for this ECU.
If someone wanted to share it, it would be super cool for me.
Many thanks
I am doing some tests with E85 on my Grande t-jet at the moment. My question to you then is - can you tell me what exactly you have done with the base ignition map for E85? The stock ignition map on GP is crap on higher loads and seems even crappier on E85...
On my first car (fiat coupe 20v turbo) there is 2 map for wot ignition (depend on rpm: one from 1000 to 3700, and one from 850 to 6000 ) , and 4 maps for middle charge.
I juste increased values; i ll give the exact values of increase when I come home tonight.
For the seicento, I increased the base map between 5 and 10° especially on the maximum torque rpm.
10° remains largely acceptable with E85 and it is possible to increase up to 15°. However fuel map need to be perfect to avoid EGT to high
I juste increased values; i ll give the exact values of increase when I come home tonight.
For the seicento, I increased the base map between 5 and 10° especially on the maximum torque rpm.
10° remains largely acceptable with E85 and it is possible to increase up to 15°. However fuel map need to be perfect to avoid EGT to high
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Hi Woj
Actually Ihave some difficultys to tune the16F in my Cinque.
It has a 1242 cc engine with Punto 75 head and SPI with 36mm throttle. Together with an open exhaust and widened air intake (original air filter kept) this ran fine with a MCritch Eprom and and fuel pressure adjusted to 1,2 bar.
During thelast Winter I installed a CatCams 283 camshaft. This disturbed the balance of the engine as expected: due to the bigger overlap the engine consumed less air in the lower rpm range and subsequently mixture is now much richer – AFR 10-11at idle speed of 1000 rpm. The rich condition continues up to 2000. HC value is very high and beyond all limits to meet the required values for street use.With the lambda sensor active this was outside the limits for autocalibration.
Above 2000 at part throttle it went lean and autocalibration eventually worked (afterhaving carried out a reset of the autocalibration) using IAW scan.
To resetthe fuel maps I burned an eprom with thelambda flag deactivated. My intention was to set the part throttle map to anAFR of ~ 13,5 to be slightly richer than 14.7 and near enough to Lambda 1 tomake the autocalibration work.
To cure therich condition I lowered the values in the part throttle map in two steps withlambda measurements to check the efficiency of the measure. Both loweringsshowed no effect on the lambda at idle. Still 10-11. Does there maybe exist anidle fuel map or am I missing something? I was re- reading your live mappingthread but got no enlightment so far.
Best regards Ernst
Actually Ihave some difficultys to tune the16F in my Cinque.
It has a 1242 cc engine with Punto 75 head and SPI with 36mm throttle. Together with an open exhaust and widened air intake (original air filter kept) this ran fine with a MCritch Eprom and and fuel pressure adjusted to 1,2 bar.
During thelast Winter I installed a CatCams 283 camshaft. This disturbed the balance of the engine as expected: due to the bigger overlap the engine consumed less air in the lower rpm range and subsequently mixture is now much richer – AFR 10-11at idle speed of 1000 rpm. The rich condition continues up to 2000. HC value is very high and beyond all limits to meet the required values for street use.With the lambda sensor active this was outside the limits for autocalibration.
Above 2000 at part throttle it went lean and autocalibration eventually worked (afterhaving carried out a reset of the autocalibration) using IAW scan.
To resetthe fuel maps I burned an eprom with thelambda flag deactivated. My intention was to set the part throttle map to anAFR of ~ 13,5 to be slightly richer than 14.7 and near enough to Lambda 1 tomake the autocalibration work.
To cure therich condition I lowered the values in the part throttle map in two steps withlambda measurements to check the efficiency of the measure. Both loweringsshowed no effect on the lambda at idle. Still 10-11. Does there maybe exist anidle fuel map or am I missing something? I was re- reading your live mappingthread but got no enlightment so far.
Best regards Ernst
Hi chaps
Does anyone know if the Suzuki GSXR K1-K3 injectors, TPS & IAT will work with the IAW 8F.5T and a ECU Master DET3??
The GSX-R is being used and demobilised 5Ts combined with a DET are WAY cheaper than a Link/Emerald etc.
Cheers
Does anyone know if the Suzuki GSXR K1-K3 injectors, TPS & IAT will work with the IAW 8F.5T and a ECU Master DET3??
The GSX-R is being used and demobilised 5Ts combined with a DET are WAY cheaper than a Link/Emerald etc.
Cheers
What did you do with the cranking fuel for E85? I have a nightmare of a tuning job on my GP with sorting this out.
I also have some problems with seicento and IAW.
I increased the cranking values up to a temperature of 50 °cooling.
it works well and I have no trouble to start the engine.
However I have problems in the heating phase between 30 and 50 °.
on the motronic I did not touch the crancking but simply the values of 2 maps on the cold correction and it s running very well even in cold temperature.(-17° in february this year)
