O2 Sensor

[Ward]

Mr Broadus is correct, in fact the front wheel ABS sensors are into the act
so that Mis-fire detection is shut doun on bad roads.
Ward

On Fri, 17 Sep 1999 17:18:45 -0500, Don.F.Broadus at ucm.com wrote:

> From what I have read in the SAE proceedings on automotive
> sensors/monitoring the crankshaft monitoring with magnetorestrictive
sensors
> ( crankshaft acceleration) was the only reliable method of miss
detection
> on a cylinder by cylinder basis. In normal engine operation cylinder miss
is
> quite common and random. The severity of miss is the big issue, as
> incomplete combustion can be tagged as a 'miss' by a crankshaft
acceleration
> sensor and not be felt by the driver. CARB had sponsored research in miss
> detection in there ever increasing quest to burden car buyers and
> manufactures with unrealistic requirements and expensive technology.    
> 
> 
> 
> 
> 
> 
> 
> 
> 
> > -----Original Message-----
> > From:	Geoff Richards [SMTP:geoffsue at one.net.au]
> > Sent:	Friday, September 17, 1999 7:09 AM
> > To:	gmecm at efi332.eng.ohio-state.edu
> > Subject:	Re: O2 Sensor
> > 
> > >  If the  O2 sensor was any good at finding individual cylinders
> > (mixtures),
> > >then why did gm go to crankshaft accleration rates for miss
detection?.
> > >Grumpy
> > 
> > got time to explain this or or the whereabouts I can get the info ?
> > 
> > Geoff





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