Author Topic: evo 8 trigger  (Read 14697 times)

Offline MWfire

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Re: evo 8 trigger
« Reply #15 on: November 18, 2014, 11:44:47 am »
More tooth is better.
Don't use 4+1 tirgger.

primary trigger is vr and sec hall?
both of them are hall, crank maybe optical,  but anyway it does not matter now, engine dead at this moment, not sure it was trigger error or just little bit lean on one cylinder :)

when you have trigger error, then ign and inj are disabled. So that is safety feature.
Probably engine is dead duo to small injectors.

Did you try to use hall dirac filter on both input triggers?

Offline Kamuto

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Re: evo 8 trigger
« Reply #16 on: November 18, 2014, 01:11:38 pm »
More tooth is better.
Don't use 4+1 tirgger.

primary trigger is vr and sec hall?
both of them are hall, crank maybe optical,  but anyway it does not matter now, engine dead at this moment, not sure it was trigger error or just little bit lean on one cylinder :)


when you have trigger error, then ign and inj are disabled. So that is safety feature.
Probably engine is dead duo to small injectors.

Did you try to use hall dirac filter on both input triggers?

no, havent tried it :)  will try on another one :) btw, if it's hall on both triggers it not noise I think? yes i have measured knock activity on trigger error, it could not be blown because of this :)  I said guy don't be hard on it because triggers need to be chanded and injectors too but he tried max speed in 5 gear or something :)
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Offline MWfire

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Re: evo 8 trigger
« Reply #17 on: November 18, 2014, 02:12:45 pm »
Hall can also have problem with noise. You can fix that with stronger fitler(software(hall dirac filter) or put 10nF condesantor in parallel for both inputs.)


Offline Kamuto

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Re: evo 8 trigger
« Reply #18 on: November 18, 2014, 05:34:42 pm »
Hall can also have problem with noise. You can fix that with stronger fitler(software(hall dirac filter) or put 10nF condesantor in parallel for both inputs.)

will try to scope signal next week :) anyway 2 tooth is not very reliable,
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Offline VEMS

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Re: evo 8 trigger
« Reply #19 on: November 19, 2014, 08:55:25 am »
Hello Kamuto,

We support both bipolar stepper motors though stepper chip and unipolar motors through p259, these is some documentation about this on: http://vems.hu/vt/help/v3/v3_idle_stepper_hardware.html

Regarding your trigger it might be some noise issue, but when i take into account the other effects (dashlights dimming/tuning on) i would highly recommend you debug any wiring issues first.

Best regards, Dave

Offline Kamuto

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Re: evo 8 trigger
« Reply #20 on: November 20, 2014, 10:24:58 am »
Hello Kamuto,

We support both bipolar stepper motors though stepper chip and unipolar motors through p259, these is some documentation about this on: http://vems.hu/vt/help/v3/v3_idle_stepper_hardware.html

Regarding your trigger it might be some noise issue, but when i take into account the other effects (dashlights dimming/tuning on) i would highly recommend you debug any wiring issues first.

Best regards, Dave

dashlight was p259 who controls main engine relay :) your new diodes somehow cause it :) moved it on injector channel ant it's fine. p259 channel is working, if I shut off car, dash not dimming, if I turn ignition on and off dash is off but you can see few ligths are getting supply from somewhere :)  so that's not noise. got that issue with p259 before on 3.8 boards, if one relay end has +12 when ignition is switched off p259 will trigger it with no ignition, that sucks really, had to rework all wiring to relay supply from ignition switch.
Vems installer in Lithuania
valdas.sunokas@gmail.com