Uh. No. How many bits are in 1 byte?

8 bits / 1 byte?

I'm not good in hex!

The hex of krkte is 0521 and dec is 1313

I post my E100 file for all view.

was change:

TENIM
TENIM(VA)
KRKTE
KFZWOP
KFZW

My VCDS fails since last week, and now i cant make changes in fuel without analyze the O2 sensor.

I believe that have just small errors in TEMIN, just idle have little problems

After i adjust the fuel in idle, i will spend a time to adjust the KFZWOP/KFZW, because the E100 need a different ignition curve.

example:

If you like, i can post here the ori file of a VW AP 1.6 Mi Gasoline, and a ori file of VW AP 1.6 Mi ETANOL ori file.

In warm up the engine of passat v6 and 1.8 20v works like a original etanol powered engine, for cold start, i use a glow plug of diesel engine to heat the etanol for start like a heated engine.

In a passat 1.8 20v E100 i just have a problem when starts hot with 550cc injectors... for solve it i need to found TLST.0 / TLST.1

For the injectors:

Gasoline: 14,70:1 and sg is about 0,725
Ethanol:  9,0 to 8,65:1 sg is about 0,811 
(Some authors say 9,00, some - as Marelli, says 8,65)

   14,70/8,65 x (0,725/0,811) = 1,52  (I)
   14,70/9,00 x (0,725/0,811) = 1,46  (II)

You can go anywhere between these and everything will go OK, in fact 52% will help with TIP IN issues based as ethanol is more dense and its response is slower, but in stationary loads/RPM 46% will make less corrections in STFT.

About KFZW/KFZWOP

Just start about 6° (forget where I saw it first time) in KFZW, as KFZWOP are defined as max ignition angle if it was not limited to detonation you can keep it as original values.

There is just when things start to get complex, if you have an engine with low CR (for Ethanol, let´s say less than 10,5:1) you can raise KFZW much more than 6° and will in some cases get more than KFZWOP in some areas, in these case I just make an off-set with something less than the original off-set.

Its interessant to say that you never get detonation with these low CR (not talking about turbo yet, just the NA part of operation), and in some time you raise KFZW and don´t get any torque more (it´s related to peak pressure beeing 14° after TDC).

High Higher CR and pressure you get much more torque as you walk next detonation limit, in these cases you shall want to increase the entire KFZWOP in the same off-set it have original before you mods.


Warn-up and cold start are a real pain in the ass... Hidrated Ethanol flash point is about 15°C, so, about 13°C you don´t have any combustion, about 17°C it´s very hard to ignite it... things only get better about 35/40°C...

To get Worst, when Ethanol get out of injectors it will get volume, and for Nerds sake lower the temperature more...  in practice start an engine with 100% hidrated Ethanol will require a LOT of enrichment is these 20~25°C areas... and much more in lower temperatures...

Warn-up it´s another pain, the Wall Film don´t help at all and moisture oscilate much more than with gasoline... again, it requires a lot of enrichment to work, and it only get really normal when engine temperature is more than about 60°C and air temperature is at 35°C at last.


Just to make things more clear, here we have some flex engines that work with 100% Hidrated Ethanol and can start about 13°C, but there is 2 ways, one is heating fuel in injectores (special injectors made by Delphi for example) other is software based, when the driver start engine it will never pulse all injectors full bank as usual, the ECU allow Engine to do some revolutions without injections, with WOT (TBI all open) and firing ... after that start small injection making wallfilm until first ignition happens... to achieve this injectors angle and spray are  diferent from Gasoline engines and manifold are all in ABS (plastic) so the heat exchange rate is minor than Aluminium ones.

It´s made this way because if you make a full group injection at start as usual the spark plugs get wet (ethanol makes short-circuits in eletrctode and mass) and in these conditions will never get a spark to occur

So, for E100 don't needs to change KFZWMS?

For E100 is good to keep KFZWOP at the value original? dont make any changes?

Here you are right as I have not taken mass/flow difference into consideration. Still there is more flow needed if you compare rich best torque mixtures - it is just not 94% I mentioned earlier but ~84%. Taking that into consideration I would say Gulfstream has choosen probably a little bit too small injectors for this conversion.

I still can not fully agree with you about KFZWOP as you simply insist torque model (which is one of the most important things in ME7) could be left in degenerated state. Adjusting KFZWOP by just shifting it by 5-8* could be much better solution than leaving it stock while still being an ugly hack.