Now to my triggering issue

[bcool]

My VR trigger consists of a 24 tooth wheel that rotates at half the engine crank speed which is 12 teeth per revolution. I've removed 2 teeth for a home signal, but i cant get the VEMS to respond to the Crank angle sensor under Multitooth but i can get it to make a response if i list it under "coil type" I'm spinning it at a decent rate too on the table.

I might be an idiot but i have no clue what the tooth relative setting are or know if they really matter.

My CAS

This is going off of jason russel's drawing

[rob@vems.co.uk]

Which firmware version are you using?  The relative teeth may have some use in the newer ones.

Spinning by hand on a VR sensor like that is likely to cause issues, getting a stable enough spin will be the problem - for this testing I use a pillar drill (drill press to our American cousins)  I tried all matter of hand spinning techniques when messing with the Toyota triggers (which are the same pattern - Denso I think...)

Did you think about using the second two teeth on the outer ring and using the 24+2 (12+1) triggering?

[bcool]

Yes this is a denso unit. I may try it in the car under normal cranking conditions. Do you think it will show up under megatune if it is getting a consistent pulse for verification?

I'm using Version 1.0.73rc2. I think i may have messed around with the "relative" settings on accident so i'm not sure if they're correct or not and i'm not really sure to what values i'm supposed to be setting them up as.

I think that the picture may also be a bit deceiving. Are you talking about using the 2 stock home signal teeth above the 24 tooth wheels as the secondary "cam sync" sensor?

[rob@vems.co.uk]

I'd always look at the signal at cranking, it will show if you have any issues with noise (which can bite you when you least expect it )

Relative trigger is only used if special filtering is selected, you wont need it.

The home signals would give the same solution as the missing teeth.

[bcool]

When we get this TPS/MAP issue figured out i'll try it on the car.

[bcool]

Eh nothing at all under cranking conditions

http://myweb.cableone.net/mjbless/vems/crank.mpg

[rob@vems.co.uk]

To check that your trigger is getting anything at all switch type to Coil-type and set all your filters options to disabled.
Cranking the engine should yeild an RPM reading, all be it a wrong one.
If you get nothing at all then I'd recommend using the signalgen program to generate a test signal through your PC speakers.
Also check the voltage going to the VR chip, and check that the P259 is not dead.

[bcool]

Ahhh yeah, like i said before when i switch to coil type when i'm cranking i get a 700-800RPM trigger out of it

[rob@vems.co.uk]

Okay so its electrically correct, next thing to do is look at the trigger logging
http://www.vems.hu/wiki/index.php?page=InputTrigger%2FTriggerLog

I wrote up some of my Toyota triggering tests which is 24+4 so its very similar to yours:
http://www.vems.hu/wiki/index.php?page=VehicleFitment%2FToyota

[bcool]

Here's what i got I'm not sure how to convert these into the format. I assume you have to use perl.

Here's the log file:

http://myweb.cableone.net/mjbless/vems/trigger.log

And heres the gibberish in the terminal program itself (i dont know if this is used):

http://myweb.cableone.net/mjbless/vems/gibberish.txt

[bcool]

You know...i've never tried flip flopping the 2 wires around do you think that it could make a difference?

[bcool]

Seems to be fixed, i had the wires bacwords Doh!

[bcool]

So apparently its not fixed i have a signal but its spotty. I get an even strong crank and it jumps around every once in a while.

Heres the megatune logs

http://myweb.cableone.net/mjbless/vems/crank1.xls
http://myweb.cableone.net/mjbless/vems/crank2.xls

And my new Terminal trigger log:

http://myweb.cableone.net/mjbless/vems/triggerworking.log

[rob@vems.co.uk]

The first things to look at are the engine grounds and the sheilding on the trigger wires.
Next we're going to need to try some pull-down resistors, try a 270ohm pull-down (trigger line to ground) to see if that gets more stability. If that doesn't work remove the pull-down and try pulling up the trigger line, use a resistor starting at 10K between Vbatt and trigger line, and decrease the resistance value.

Here is your trigger log formatted with binary.pl, you can read about what it meams on the Wiki page:
http://www.vems.hu/wiki/index.php?page=InputTrigger%2FTriggerLog

1                     84   1
2   21605   1
3                     25886   308.16 MISSINGTOOTH 1.5
4   7688   0.35
5                     2039   0.07
6   63233   8.22 MISSINGTOOTH 3
7                     248   0.12
8   63486   1
9                     64959   261.93 MISSINGTOOTH 3
10   48896   0.77
11                     79   0
12   20219   0.41
13                     64177   812.36 MISSINGTOOTH 2
14   45311   2.24 MISSINGTOOTH 4
15                     65353   1.01
16   18694   0.41
17                     1532   0.02
18   64414   3.44 MISSINGTOOTH 2
19                     40415   26.38 MISSINGTOOTH 3
20   57175   0.88
21                     22320   0.55
22   12292   0.21
23                     966   0.04
24   50619   4.11 MISSINGTOOTH 3
25                     47863   49.54 MISSINGTOOTH 3
26   63248   1.24
27                     4094   0.08
28   65026   1.02
29                     519   0.12
30   1789   0.02
31                     64764   124.78 MISSINGTOOTH 3
32   64513   36.06 MISSINGTOOTH 4
33                     254   0
34   65031   1
35                     1776   6.99 MISSINGTOOTH 2
36   61430   0.94
37                     62976   35.45 MISSINGTOOTH 1
38   10   0
39                     2586   0.04
40   6651   665.1 MISSINGTOOTH 4
41                     64246   24.84 MISSINGTOOTH 2
42   62984   9.46 MISSINGTOOTH 1
43                     2049   0.03
44   247   0
45                     63215   30.85 MISSINGTOOTH 2
46   61215   247.83 MISSINGTOOTH 2
47                     7981   0.12
48   11450   0.18
49                     47584   5.96 MISSINGTOOTH 2
50   57379   5.01 MISSINGTOOTH 2
51                     8960   0.18
52   0   0
53                     0   0
54   0   1
55                     0   1
56   0   1
57                     0   1
58   0   1
59                     0   1
60   0   1
61                     0   1
62   0   1
63                     0   1
64   0   1
65                     0   1
66   0   1
67                     0   1
68   0   1
69                     0   1
70   0   1
71                     0   1
72   0   1
73                     0   1
74   0   1
75                     0   1
76   0   1
77                     0   1
78   0   1
79                     0   1
80   0   1
81                     0   1
82   0   1
83                     0   1
84   0   1
85                     0   1
86   0   1
87                     0   1
88   0   1
89                     0   1
90   0   1
91                     0   1
92   0   1
93                     0   1
94   0   1
95                     0   1
96   65501   1
97                     56531   1
98   54006   0.82
99                     62976   1.11
100   0   0
101                     0   0
102   0   1
103                     0   1
104   0   1
105                     0   1
106   0   1
107                     0   1
108   0   1
109                     0   1
110   0   1
111                     0   1
112   0   1
113                     0   1
114   0   1
115                     0   1
116   0   1
117                     0   1
118   0   1
119                     0   1
120   0   1
121                     0   1
122   0   1
123                     0   1
124   0   1
125                     65   1
126   16686   1
127                     11890   182.92 MISSINGTOOTH 39
128   29227   1.75 MISSINGTOOTH 39
129                     10845   0.91
130   23884   0.81
131                     19495   1.79 MISSINGTOOTH 2
132   9913   0.41
133                     47360   2.42 MISSINGTOOTH 1
134   15   0
135                     3875   0.08
136   8858   590.53 MISSINGTOOTH 4
137                     39456   10.18 MISSINGTOOTH 2
138   8429   0.95
139                     60704   1.53 MISSINGTOOTH 1
140   8052   0.95
141                     29726   0.48
142   7688   0.95
143                     2078   0.06
144   7756   1
145                     19487   9.37 MISSINGTOOTH 3
146   7974   1.02
147                     9502   0.48
148   7674   0.96
149                     64029   6.73 MISSINGTOOTH 2
150   7444   0.97
151                     5148   0.08
152   7123   0.95
153                     54075   10.5 MISSINGTOOTH 2
154   15074   2.11 MISSINGTOOTH 9
155                     57883   1.07
156   6908   0.45
157                     64540   1.11
158   7154   1.03
159                     61981   0.96
160   7360   1.02
161                     49180   0.79
162   7259   0.98
163                     23068   0.46
164   7055   0.97
165                     36636   1.58 MISSINGTOOTH 6
166   7128   1.01
167                     55324   1.51 MISSINGTOOTH 1
168   7284   1.02
169                     29724   0.53
170   7140   0.98
171                     58395   1.96 MISSINGTOOTH 2
172   6939   0.97
173                     6938   0.11
174   6673   0.96
175                     4408   0.63
176   14421   2.16 MISSINGTOOTH 11
177                     21787   4.94 MISSINGTOOTH 3
178   6700   0.46
179                     11035   0.5
180   6981   1.04
181                     17692   1.6 MISSINGTOOTH 2
182   7212   1.03
183                     11292   0.63
184   7223   1
185                     14107   1.24
186   6966   0.96
187                     13852   0.98
188   6924   0.99
189                     3099   0.22
190   7050   1.01
191                     35355   11.4 MISSINGTOOTH 5
192   6904   0.97
193                     63515   1.79 MISSINGTOOTH 1
194   6812   0.98
195                     39961   0.62
196   6621   0.97
197                     56377   1.41
198   14339   2.16 MISSINGTOOTH 11
199                     794   0.01
200   6684   0.46
201                     7195   9.06 MISSINGTOOTH 4
202   7019   1.05
203                     27420   3.81 MISSINGTOOTH 1
204   7273   1.03
205                     26909   0.98
206   7225   0.99
207                     14619   0.54
208   6978   0.96
209                     16923   1.15
210   6956   0.99
211                     11292   0.66
212   7067   1.01
213                     39707   3.51 MISSINGTOOTH 5
214   6964   0.98
215                     13083   0.32
216   6824   0.97
217                     43033   3.28 MISSINGTOOTH 2
218   6610   0.96
219                     53816   1.25
220   14222   2.15 MISSINGTOOTH 11
221                     36378   0.67
222   6651   0.46
223                     64283   1.76 MISSINGTOOTH 3
224   6919   1.04
225                     1820   0.02
226   7172   1.03
227                     1052   0.57
228   7181   1
229                     3355   3.18 MISSINGTOOTH 3
230   6929   0.96
231                     4123   1.22
232   6935   1
233                     5916   1.43
234   7110   1.02
235                     50715   8.57 MISSINGTOOTH 3
236   6966   0.97
237                     13851   0.27
238   6834   0.98
239                     45594   3.29 MISSINGTOOTH 2
240   6601   0.96
241                     51511   1.12
242   14225   2.15 MISSINGTOOTH 11
243                     37146   0.72
244   6608   0.46
245                     53275   1.43
246   6934   1.04
247                     5660   0.1
248   7229   1.04
249                     15388   2.71 MISSINGTOOTH 5
250   7208   0.99
251                     10268   0.66
252   6920   0.96
253                     2074   0.2
254   6888   0.99
255                     59420   28.64 MISSINGTOOTH 3
256   7007   1.01
257                     24347   0.4
258   6861   0.97
259                     52506   2.15 MISSINGTOOTH 2
260   6743   0.98
261                     22297   0.42
262   6530   0.96
263                     33336   1.49
264   14143   2.16 MISSINGTOOTH 11
265                     15898   0.47
266   6645   0.46
267                     62747   3.94 MISSINGTOOTH 4
268   6924   1.04
269                     3100   0.04
270   7198   1.03
271                     7708   2.48 MISSINGTOOTH 2
272   7218   1
273                     12827   1.66 MISSINGTOOTH 1
274   6952   0.96
275                     10267   0.8
276   6918   0.99
277                     1564   0.15
278   7120   1.02
279                     53275   34.06 MISSINGTOOTH 3
280   6919   0.97
281                     1819   0.03
282   6811   0.98
283                     39706   21.82 MISSINGTOOTH 2
284   6645   0.97
285                     62520   1.57 MISSINGTOOTH 1
286   14334   2.15 MISSINGTOOTH 11
287                     65050   1.04
288   6653   0.46
289                     64795   0.99
290   6953   1.04
291                     10524   0.16
292   7214   1.03
293                     11804   1.12
294   7175   0.99
295                     1819   0.15
296   6934   0.96
297                     5659   3.11 MISSINGTOOTH 6
298   6956   1
299                     11292   1.99 MISSINGTOOTH 1
300   7110   1.02
301                     50459   4.46 MISSINGTOOTH 1
302   6980   0.98
303                     17435   0.34
304   6811   0.97
305                     39705   2.27 MISSINGTOOTH 2
306   6544   0.96
307                     36920   0.92
308   14170   2.16 MISSINGTOOTH 11
309                     23066   0.62
310   6637   0.46
311                     60699   2.63 MISSINGTOOTH 3
312   6943   1.04
313                     7964   0.13
314   7280   1.04
315                     28701   3.6 MISSINGTOOTH 2
316   7273   0.99
317                     26651   0.92
318   6979   0.95
319                     17179   0.64
320   6919   0.99
321                     1820   0.1
322   7064   1.02
323                     38938   21.39 MISSINGTOOTH 4
324   6873   0.97
325                     55579   1.42
326   6754   0.98
327                     25113   0.45
328   6513   0.96
329                     28983   1.15
330   13973   2.14 MISSINGTOOTH 11
331                     38169   1.31
332   6558   0.46
333                     40476   1.06
334   6951   1.05
335                     9756   0.24
336   7308   1.05
337                     35868   3.67 MISSINGTOOTH 7
338   7240   0.99
339                     18460   0.51
340   7018   0.96
341                     27163   1.47
342   7016   0.99
343                     26652   0.98
344   7193   1.02
345                     6428   0.24
346   7036   0.97
347                     31771   4.94 MISSINGTOOTH 5
348   6866   0.97
349                     53786   1.69 MISSINGTOOTH 1
350   6670   0.97
351                     3384   0.06
352   14418   2.16 MISSINGTOOTH 11
353                     21018   6.21 MISSINGTOOTH 2
354   6699   0.46
355                     11035   0.52
356   6962   1.03
357                     12829   1.16
358   7211   1.03
359                     11036   0.86
360   7208   0.99
361                     10267   0.93
362   6950   0.96
363                     9755   0.95
364   6964   1
365                     13340   1.36
366   7112   1.02
367                     51227   3.84 MISSINGTOOTH 7
368   6938   0.97
369                     6682   0.13
370   6793   0.97
371                     34842   5.21 MISSINGTOOTH 2
372   6599   0.97
373                     51000   1.46
374   14187   2.14 MISSINGTOOTH 11
375                     27417   0.53
376   6585   0.46
377                     47387   1.72 MISSINGTOOTH 3
378   6921   1.05
379                     2333   0.04
380   7218   1.04
381                     12828   5.49 MISSINGTOOTH 2
382   7192   0.99
383                     6171   0.48
384   6890   0.95
385                     59931   9.71 MISSINGTOOTH 2
386   6896   1
387                     61211   1.02
388   7022   1.01
389                     28187   0.46
390   6848   0.97
391                     49178   1.74 MISSINGTOOTH 3
392   6706   0.97
393                     12743   0.25
394   50884   7.58 MISSINGTOOTH 10
395                     50211   3.94 MISSINGTOOTH 2
396   8960   0.17
397                     0   0
398   0   0
399                     0   1
400   0   1
401                     0   1
402   0   1
403                     0   1
404   0   1
405                     0   1
406   0   1
407                     0   1
408   0   1
409                     0   1
410   0   1
411                     0   1
412   0   1
413                     0   1
414   0   1
415                     0   1
416   0   1
417                     0   1
418   0   1
419                     0   1
420   0   1
421                     0   1
422   0   1
423                     0   1
424   0   1
425                     0   1
426   0   1
427                     0   1
428   0   1
429                     0   1
430   0   1
431                     0   1
432   0   1
433                     0   1
434   0   1
435                     0   1
436   0   1
437                     0   1
438   0   1
439                     0   1
440   0   1
441                     65501   1
442   56599   1
443                     5975   0.09
444   22320   0.39
445                     12292   2.05 MISSINGTOOTH 25
446   966   0.04
447                     50619   4.11 MISSINGTOOTH 1
448   47863   49.54 MISSINGTOOTH 27
449                     63248   1.24
450   4094   0.08
451                     65026   1.02
452   519   0.12
453                     1789   0.02
454   64764   124.78 MISSINGTOOTH 3
455                     64513   36.06 MISSINGTOOTH 4
456   254   0
457                     65031   1
458   1776   6.99 MISSINGTOOTH 2
459                     61430   0.94
460   62976   35.45 MISSINGTOOTH 1
461                     10   0
462   2586   0.04
463                     6651   665.1 MISSINGTOOTH 4
464   64246   24.84 MISSINGTOOTH 2
465                     62984   9.46 MISSINGTOOTH 1
466   2050   0.03
467                     508   0
468   64494   31.46 MISSINGTOOTH 2
469                     60954   119.98 MISSINGTOOTH 2
470   6701   0.1
471                     11450   0.18
472   47608   7.1 MISSINGTOOTH 2
473                     63588   5.55 MISSINGTOOTH 2
474   25631   0.53
475                     7858   0.12
476   45576   1.77 MISSINGTOOTH 2
477                     2127   0.27
478   20219   0.44
479                     64177   30.17 MISSINGTOOTH 3
480   45311   2.24 MISSINGTOOTH 2
481                     65353   1.01
482   18694   0.41
483                     1532   0.02
484   64414   3.44 MISSINGTOOTH 2

[GintsK]

I have 12-1 problems just. I have similar setup like yours but using hall. So investigation was shorter. It was almost impossible to get stable readings at cranking. especialy if engine start firing. Finally I record signal with scope and visually found that it is hard found missing tooth - there was two gaps: one real gap ~90deg btdc and second - at tdc because of compression. so my solution was to reorient missing tooth back closer to tdc of 2&3 cil. so no more triggering errors.

Before i try everything: special n-1, rising/falling edge, batch of filtering settings with filtering on - no changes. looks like filtering do not work at all on 1.0.73 (?) - cant even get worthier/no triggering with utopian settings.