How is misfire detected on Saturn SOHC?

Tommie · 05-07-2009, 06:48 AM

This is a question for all you tech savy guys. Exactly how does the ECU determine engine misfire on the SOHC? Is it time interval on the teeth on the crankshaft?

Thanks in advance.

fdryer · 05-07-2009, 06:55 AM

Try Differentracing.com for the technical explanation. There's another site also that rehashes the same basic information about electronically detecting misfires.

OldNuc · 05-07-2009, 08:59 AM

Quote:

Originally Posted by Tommie

This is a question for all you tech savy guys. Exactly how does the ECU determine engine misfire on the SOHC? Is it time interval on the teeth on the crankshaft?

Thanks in advance.

The short answer is the time difference between a given pair of notches with the engine at a constant RPM.

05-07-2009, 06:48 AM	#1
Tommie Advanced Member Join Date: Oct 2008 Location: Toronto Posts: 616 Tommie's Photos 1996 SL1 2002 SL1	How is misfire detected on Saturn SOHC? This is a question for all you tech savy guys. Exactly how does the ECU determine engine misfire on the SOHC? Is it time interval on the teeth on the crankshaft? Thanks in advance.

05-07-2009, 06:55 AM	#2
fdryer Super Member Join Date: Jan 2006 Location: NYC Posts: 45,947 fdryer's Photos 2003 L-Series 3.0L Sedan	Re: How is misfire detected on Saturn SOHC? Try Differentracing.com for the technical explanation. There's another site also that rehashes the same basic information about electronically detecting misfires. ... VCX NANO

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