車運行的時候傳感器供電電壓和電池電壓關係大麽？

來源: 於 2016-05-04 08:01:31 [舊帖] [給我悄悄話] 本文已被閱讀：次

01 camry 180k, never changed cat, 26-28 mpg always

as I understand it, o2 sensor has to be heated up to work properly when engine is running.  At that time, battery voltage should not matter.  So that is the confusing part here to me