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Author Topic: C20XE M2.8 2nd CAM trigger setting  (Read 11543 times)

Offline Pet

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C20XE M2.8 2nd CAM trigger setting
« on: March 25, 2009, 08:03:01 pm »
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
« Last Edit: March 25, 2009, 08:10:28 pm by Pet »
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Offline rob@vems.co.uk

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #1 on: March 26, 2009, 02:30:12 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
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Offline Pet

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #2 on: March 30, 2009, 03:25:38 am »
Quote from: rob@vems.co.uk on March 26, 2009, 02:30:12 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)

« Last Edit: March 30, 2009, 01:05:37 pm by Pet »
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Offline Sprockets

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #3 on: March 30, 2009, 02:15:10 pm »
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
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Offline Pet

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #4 on: March 30, 2009, 04:01:23 pm »
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.
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Offline Sprockets

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #5 on: March 30, 2009, 05:08:24 pm »
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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Offline MWfire

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #6 on: March 31, 2009, 03:56:17 am »
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Offline mr_g

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #7 on: June 05, 2009, 07:18:19 pm »
Is that the one you have? With 2 inputs?
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Offline MWfire

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #8 on: June 05, 2009, 07:27:35 pm »
Quote from: mr_g on June 05, 2009, 07:18:19 pm
Is that the one you have? With 2 inputs?
Yes, 2 input+trigger
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Offline mr_g

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Re: C20XE M2.8 2nd CAM trigger setting
« Reply #9 on: June 05, 2009, 07:43:26 pm »
Now, I have it also... :)
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