24+1 trigger

[Jan P]

I'm struggling to finish my 4AGE 20V into AE86 swap and I seem to be stranded on this trigger issue.

I'm trying to run a 24+1 trigger setup. At vems.hu/wiki I was told to use the 1.1.27 firmware as this could handle N+1 but N<=11. And as you would suspect it doesn't work.

Secundary trigger is now working. Seems quite good as it pics up quite small signals. It calculates the engine speed to a steady 250 rpm while cranking. But now it fires quite crazy, not 180 degrees apart like you would think. Pattern looks like this:

Its the same pattern every time so I don't think its due to a noisy trigger.

Is anybody running a 24+1 setup? Could you please tell me wich firmware I would have to use? I've tried 1.0.73, 1.1.18, 1.1.27, 1.1.41 and 1.1.44 all with the same result...

Anyways this is my config and tables - does this look right:

primary_trigger=13
secondary_trigger=1D
tooth_wheel=18
trigger_tooth=03
another_trigger_tooth=06
crank_minper=13
tooth_wheel_twidth1=78
tooth_wheel_twidth2=00
cam_sync_r_edge_phase=33
cam_sync_f_edge_phase=46
reset_engphase_after=40

j[0]=3280 3480 3A80 3E80 4080 3F80 4180 4280 4780 4A80 4B80 4A80 4880 4680 4380 4280
j[1]=3380 3A80 4080 4580 4580 4480 4480 4680 4A80 4E80 4F80 4E80 4B80 4880 4580 4580
j[2]=3680 3D80 4580 4A80 4B80 4A80 4880 4B80 4F80 5280 5280 5180 4E80 4A80 4980 4780
j[3]=3C80 4180 4980 4E80 5080 5080 4D80 4E80 5180 5380 5380 5280 4F80 4C80 4A80 4880
j[4]=3F80 4680 4D80 5080 5180 4F80 4F80 4F80 5280 5480 5480 5380 5080 4C80 4B80 4980
j[5]=4380 4A80 5080 5180 5280 5080 4E80 4F80 5380 5580 5580 5480 5180 4D80 4B80 4980
j[6]=4880 4E80 5180 5380 5280 4E80 4F80 5080 5480 5680 5680 5580 5180 4E80 4C80 4A80
j[7]=4D80 5180 5280 5380 5180 4E80 4F80 5080 5580 5780 5780 5680 5180 4E80 4D80 4B80
j[8]=5180 5480 5280 5280 5280 5080 5180 5280 5680 5880 5880 5780 5280 4F80 4D80 4B80
j[9]=5380 5480 5280 5280 5280 5180 5280 5280 5780 5980 5980 5880 5280 4F80 4D80 4B80
j[A]=5480 5680 5480 5380 5380 5180 5180 5280 5780 5980 5980 5880 5280 4F80 4D80 4B80
j=5480 5480 5380 5380 5380 5180 5180 5280 5880 5A80 5A80 5980 5380 5080 4D80 4B80
j[C]=5480 5380 5280 5280 5080 4F80 5080 5280 5880 5A80 5A80 5980 5380 5080 4D80 4B80
j[D]=5480 5380 5280 5280 5080 4F80 5080 5280 5880 5A80 5A80 5980 5380 5080 4D80 4B80
l[0]=37 2D 2D 2D 2D 32 37 3D 3D 3D 3D 3D 55 55 55 55
l[1]=37 34 2D 2D 32 34 37 3D 3D 3D 3D 55 55 55 55 55
l[2]=37 37 34 34 36 37 37 3D 3D 3D 55 55 55 55 55 55
l[3]=37 37 37 37 37 39 3B 3D 3D 55 55 55 55 55 55 55
l[4]=37 37 37 37 37 39 3B 3D 55 55 55 55 55 55 55 55
l[5]=37 37 37 37 37 3B 3D 48 55 55 55 55 55 55 55 55
l[6]=37 37 37 3B 3B 43 47 55 55 55 55 55 55 55 55 55
l[7]=3D 3D 3D 3D 3D 44 4D 63 63 63 63 63 66 66 66 66
l[8]=44 44 44 44 47 51 5C 66 66 66 66 66 66 66 66 66
l[9]=4F 4F 4F 51 55 5A 63 66 66 66 66 66 66 66 66 66
l[A]=55 55 55 55 5C 61 66 66 66 66 66 66 66 66 66 66
l=55 55 55 55 5C 61 66 66 66 66 66 66 66 66 66 66
l[C]=55 55 55 55 5C 61 66 66 66 66 66 66 66 66 66 66
l[D]=55 55 55 55 5C 61 66 66 66 66 66 66 66 66 66 66
n[0]=28 28 28 3D 4D 64 74 7A 7D 7F 7F 7F 80 80 80 80
n[1]=28 28 28 3D 4D 64 73 7A 7D 7F 7F 7F 80 80 80 80
n[2]=28 28 28 3D 4D 63 71 78 7D 7F 7F 7F 80 80 80 80
n[3]=28 28 28 3C 4C 61 6F 77 7B 7E 7F 80 83 83 83 83
n[4]=28 28 28 44 57 60 74 7D 82 84 84 84 87 87 87 87
n[5]=35 3B 44 56 60 7D 81 82 84 82 84 84 87 87 87 87
n[6]=35 3B 55 5C 66 7E 85 83 84 86 85 87 87 87 87 87
n[7]=46 59 59 5D 6E 7F 85 88 8A 8A 89 88 87 87 87 87
n[8]=50 50 50 50 69 7E 83 88 89 89 89 89 87 87 87 87
n[9]=50 50 50 55 5F 88 88 88 8C 8C 8C 8C 87 87 87 87
n[A]=41 46 46 4C 50 78 78 78 78 7C 7C 7C 87 87 87 87
n=52 5E 62 7F 7E 7D 7D 7D 81 81 85 85 87 87 87 87
n[C]=5F 67 6B 87 87 87 87 87 87 87 87 87 87 87 87 87
n[D]=5F 67 6B 87 87 87 87 87 87 87 87 87 87 87 87 87
k[0]=00 14 28 3C 50 64 78 8C A0 B4 C8 DC F0 FF
r[0]=06 0A 10 16 1C 22 28 2D 34 3A 3F 44 49 4E 54 5A
h[0]=01 02 08 04 01 02 08 04
h[1]=00 08 06 04 02 00 00 00
h[2]=00 10 30 20 00 10 30 20

[GintsK]

Nissans by Rob all running 24+1. With one difference - optical sensor. Toyota have VR sensors.

For 1.1.44 with VR sensors:
Rising
coil-type
disabled
disabled
..
normal

45...70deg
24
0...5
6
2000....3000
......

Angular width of tooth 30.00


------------------------------

Secondary
Just put 25 in top row, hit burn.

-------------------

refference tooth table

12
6
0
18

---------------------
And that's all basics.

You can post your msq. Raw config is not so readable.

 (i do not recommend this firmware)

[Jan P]

Thanks! I'll compare that to what I got in the morning!

Whats wrong with the 1.1.44 firmware? You are using it on an S13 right?

[Denmark]

Jan,

When you have spend some more time trying to get it to work,and it will still not be perfect,
then mount a 36-1 wheel on the crank,

You would have whissed you did it from the start.

36-1 FTW


/Skassa

[Jan P]

Maybe you're right Skassa but I would rather do it this way first. And if it doesn't run properly then I'll take it from there...

Nissans by Rob all running 24+1. With one difference - optical sensor. Toyota have VR sensors.

For 1.1.44 with VR sensors:
Rising
coil-type
disabled
disabled
..
normal

45...70deg
24
0...5
6
2000....3000
......

Angular width of tooth 30.00


------------------------------

Secondary
Just put 25 in top row, hit burn.

-------------------

refference tooth table

12
6
0
18

---------------------
And that's all basics.

You can post your msq. Raw config is not so readable.

 (i do not recommend this firmware)

Problem was in the reference toth table. Now they are 180 degrees apart like they should be. How does your h[2] look like? And in wich order do you fire each cylinder?

[GintsK]

assuming 1-3-4-2 firing order.

12       cyl4
6        cyl3
0        cyl1
18       cyl2

But everything here can be shifted.

[Jan P]

assuming 1-3-4-2 firing order.

12       cyl4
6        cyl3
0        cyl1
18       cyl2

But everything here can be shifted.

Does this mean that your H[2] looks like this:

0      cyl4
1      cyl3
2      cyl1
3      cyl2

And H[0]:

0      cyl2
1      cyl1
2      cyl3
3      cyl4

Or does it look differently because of the backwards transversed H[2]? I just can't figure this out

[GintsK]

In my case it looks so:

0    12       cyl4
1     6        cyl3
2     0        cyl1
3    18       cyl2

Andt tooth 0 is between cyl 2 and cyl1.

[Jan P]

Thanks! I think I finally got it

And I see that I got 1 and 4 mixed up in my tables...