O2 voltage must varies with time, cannot stuck at 0.75v

Must use live data mode to check O2 sensor voltage, if it is stuck at 0.75 volt as some of the cheap sensors do, the feedback loop will produce errors, first in the pending code, late will show up as a reported error code!

所有跟帖： 

• 明白。万用表的读数其实一直在变，不过普通万用表反应慢，一开始读数低，过几分钟就会停在比较高的读数。 -原上草2017- ♂ (0 bytes) () 09/22/2019 postreply 12:09:34

• 可以用示波器来看，不过嫌麻烦，不过有空可能会试试。 -原上草2017- ♂ (0 bytes) () 09/22/2019 postreply 12:10:52