How many oxygen sensors does a 2002 es 300 have ?

[Johnjohn1187]

I’m tracking 3 

 

x1 upstream 

x2 down stream

 

can anyone verify this before I buy these parts. 
 

thanks

[RX400h]

This Lexus mechanic says there are two heated oxygen sensors and two air/fuel sensors.

I have a 2002 Lexus ES300 and I got a bad O2 sensor code (Check Engine Light is on). Is there a way to know which O2 (justanswer.com)

But I suggest calling a dealership's parts department person to verify.