NefMoto

What's the correlation? Is DWKRZ (0 based) directly related to firing order 1-4-3-6-2-5 so that DWKRZ_0 is cylinder "1", DWKRZ_1 is cylinder "4" and so forth?

Thanks.

I figured it out, ME7 logger assigns wrong cylinder numbers to array variables like dwkrz_0 - dwkrz_5 (timing retard per cyilnder) or rkrn_w_0 - rkrn_w_05 (knock sensor voltages).

ME7 logger generates the following assignments

Counter Cylinder#
0          1
1          5
2          3
3          2
4          6
5          4

The cylinder counter should follow engine's firing order where 0 is the first cylinder in firing order and 5 is the last. Our engines firing order is 1-4-3-6-2-5.

I experimentally verified that by pulling all of my injector plugs one by one while logging  fzabg_w_0 -  fzabg_w_5 which are misfire counter for each cylinder. The counter from 0 to 5 followed exactly firing order of our engine and as such it proves that ME7 logged ECU file generator has a bug.

Proper assignment is:

Counter    Cylinder#
0            1
1            4
2            3
3            6
4            2
5            5

As reminder, our engine assigns cylinder numbers in following fashion, as you look at the engine while standing in front of car  looking at engine:

3   6
2   5
1   4


It is easy to change as there are only handful of per cylinder variables of interest but it should be done to see proper cylinder assignment to knock activity etc (there are more variables that log stuff per cylinder).

so uh. thats weird.

are the kv's variables right, or just retard?

because the conventional wisdom is that 2 and 5 read high because they are nearest the pickups....

but if the counter is wrong, 2 and 5 are actually 6 and 4

KVs are not very important, as you know, because voltage itself doesn't matter all that much. That's why there is frequency filtering etc involved and real level knock sound generated out of the signal. I know that I am right since I first looked at these counters and in he context of firing order, they were just not making any sense as far as corresponding cylinder number. So then I draw it on the sheet first the way it should be and then pulled the injector plugs one by one, it matched the logical counter to firing order cylinder numbering...

This would also explain why I could never make any sense out of average knock per bank which with fubar numbering was completely uneven between banks... now it is almost identical.

Damn, this one has been bugging me too.  I still log with ecux and even vcds for some scenarios amd was def scratching my head a few times at the data pulled by me7l and how a certain cylinder wouldn't be doing what I expected. 

With this knowledge I now realize most (all) people are not even logging certain cylinders.  :/