B Bignasty1 New member Sep 27, 2011 #1 i have a 1998 lexus es300 and i am replacing my catalytic converter and i purchased a upstream o2 sensor along with a downstream o2 sensor. i need to clarify if there is another one and where it is??
i have a 1998 lexus es300 and i am replacing my catalytic converter and i purchased a upstream o2 sensor along with a downstream o2 sensor. i need to clarify if there is another one and where it is??