what “triggers” the spark - Snowmobile World : Your #1 Snowmobile Forum
 
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post #1 of 3 (permalink) Old 12-19-2010, 11:42 AM Thread Starter
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what “triggers” the spark

On a -05 F7 efi, what “triggers” the spark?
When the sensor “enters” or “leave” the raised metal “strip” it “reads”
(I know the “ecu” changes/modifies timing* due to throttle position and rpm)

//Lars

Last edited by Snowmad; 12-19-2010 at 11:46 AM.
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post #2 of 3 (permalink) Old 12-19-2010, 12:02 PM
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I think it's entering (pulse positive ) and exit (pulse colapses)I think the electronics cancel the collapse pulse unless you have a coil ignition.
I'm not an expert ,,,just a capacitor igin. uses a dc signal, and a coil would boost a ac signal.

the trigger itself would controled by the ECU

Last edited by mmgg; 12-19-2010 at 12:10 PM.
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post #3 of 3 (permalink) Old 12-26-2010, 12:59 PM Thread Starter
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Quote:
Originally Posted by mmgg View Post
I think it's entering (pulse positive ) and exit (pulse colapses)I think the electronics cancel the collapse pulse unless you have a coil ignition.
I'm not an expert ,,,just a capacitor igin. uses a dc signal, and a coil would boost a ac signal.

the trigger itself would controled by the ECU
Thanks, that sounds logical!
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