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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: I am installing VEMS V 3.5 fw: 1.0.73 on a Toyota Celica 3sgte. Everything is fine, except some trigger errors. We have used the 24 tooth OEM trigger wheel where we have removed 2 teeths, so we are going 12-1. The car starts and runs perfect up to 4200rpms. When we reach 4200 rpms the car strumbles and backfires. Here is our trigger config: Tooths on wheel: 11 Degress before TDC 50 Trigger tooth: 1 Next Trigger 6 And of course Whelldecoder on. Whe have tryed to: Switch the two wires. Larger and smaller gap between the sensor and wheel. Removed the 10.3 K ohm pullup resistor on the board. Used a new shielded cable between sensor and vems. Tryed to add a 800 ohm resisor on signal wire and ground. But nothing helps. Here are a scope log when the problem acting: http://www.vems.hu/files/MembersPage/Daniel/Celica%20ST202%203sg(T)e%20gt35/Omdrejningsf%f8ler%202%20m%e5lt%20p%e5%20stel%20ogs%e5%20fra%20giver.gif I Think it looks ok! And the MSQ file http://www.vems.hu/files/MembersPage/Daniel/Celica%20ST202%203sg(T)e%20gt35/Klaus%20celica%203sgte%2012-1%20440cc%20dyser%20gt35.msq We took a scope log of the ignion setup also ( OEM Igniter ): http://www.vems.hu/files/MembersPage/Daniel/Celica%20ST202%203sg(T)e%20gt35/Igniter%20signal%20virker.%20Med%20lus%20over%20udgang,%20ikke%20inverted.gif Thanks for your time! IMO you have to enable N-1 in primary trigger settings! Filtering is questionable. MembersPage/GintsK I have tryed to enable N-1, but whit no luck.. It dosnt help. I think we would try whit a good known distributor I found my old working msq from 12-1 on 1.0.73final. N-1 is enabled, and angular width of tooth is 12 and missing toth is 24 in my config. MembersPage/GintsK I will for sure try it in the weekend.. But I have 4 other cars runing whit the other config, and i think i allready tryed the suggested settings... Regards Daniel Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.