车运行的时候传感器供电电压和电池电压关系大么？

来源: 于 2016-05-04 08:01:31 [旧帖] [给我悄悄话] 本文已被阅读：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