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C20XE M2.8 2nd CAM trigger setting

Started by Pet, March 25, 2009, 07:03:01 PM

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Pet

Hi, pls, I am not sure, how to set up my second trigger on C20XE M2.8 (dizyless) engine. When 1&4 pistons are in TDC, crank sensor passes 19 teeth (=114deg after wheel gap), CAM trigger comes (when I am calculating right) 144deg BTDC (falling edge), then stays in low for 84deg and finally rising edge comes 60deg BTDC (see picture bottom). So pls, how to setup my 2nd trigger ? I am using 1.0.73 FW..... Thanks a lot. Pet

[email protected]

Go to Settings->Secondary trigger / Cam sync Settings
Put the number 25 in the raw trigger value box titled TODO! should be 0x02 when disabled

Pet

#2
Quote from: [email protected] on March 26, 2009, 01:30:12 AM
Go to Settings->Secondary trigger / Cam sync Settings
Put the number 25 in the raw trigger value box titled TODO! should be 0x02 when disabled
Thanks a lot, today I made my first start and it's running (idling) ! ;)
(picture bottom, inj1-4 = injector for cylinder1-4, IGN1 - wasted spark for cylinder 1&4, IGN2- WS for 2&3)


Sprockets

Sorry to go slightly off topic, but what hardware/software are you using to scope those traces? Looks good, but I would assume rather expensive to have all those channels at once, but it's ideal for this sort of work. I was looking at the USB pico stuff, but I'm sure there is better out there, but not a bad price.

Also, good work on getting your engine up and running :)

-Gavin

Pet

No problem....I am using NI USB-6009 (259Euro) (max. 48kS, when logging six channels max. sample rate is only 6.8kS, up to 8x analog inputs, 2x analog outputs,12x digital IO,32bit counter) and NI Signal Express SW. These things are quite expensive, but I'm working with them in my job everyday, so it's advantage for me.

Sprockets

Thanks for the reply, looked into the pricing for us UK bods. £600 for the software, £179 for the unit.  not to bad for the feature set but think I will stick with my idea of the USB pico, although by the time you add in all the probes for the pico, it soon adds up.

Cheers,

-Gavin



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