Ox sensor duty
brett at cloud9.net
Tue Jun 22 15:42:12 EDT 2004
At 6:26 PM -0400 6/21/04, Huw Powell wrote:
>>i had it in mind it should cycle more quickly..once a
>naw, that's typical for idle. It might cycle faster at higher rpms,
>but basically all it's doing is going a tiny bit rich/tiny bit lean,
>and never getting far enough from stoich. to matter.
This is actually done on purpose; it is designed to make 3-way
converters "work"...they're designed to be loaded one way then loaded
the other. Rich exhaust mixture allows the cat to process NO; lean
allows it to process unburned hydrocarbons and carbon monoxide.
"They that give up essential liberty to obtain temporary
safety deserve neither liberty nor safety." - Ben Franklin
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