Friendly tidbit of info regarding O2 sensors
04-08-12, 10:34 PM
#31
Is this information deemed reliable and accurate? Can someone verify? Is Bank 1 & 2 Sensor 1 really the exact same? Wire length and everything on both sides? And is Bank 1 & 2 Sensor 2 really the exact same including wire length to plug in location? pPease someone help me out. I plan to do this on my own but I wanna make sure I purchase the right sensors before I make a DIY. I wanna give reliable info to the best of my ability. Please and thanks!!!!!
04-08-12, 10:45 PM
#32
Lexus Test Driver
04-08-12, 10:49 PM
#33
Lexus Test Driver
04-08-12, 11:00 PM
#35
Lexus Test Driver
Okay very funny... 
... Is this accurate for a GS430 2001? And If so okay I get it. Bank 1 Sensor 1 is on driver side (left) before the catalyst so that makes it UPSTREAM. And Bank 1 Sensor 2 is on driver side (left... DUHH... lol) after catalyst meaning DOWNSTREAM. Correct? So Bank 2 Sensor 1 is on passenger side (right) before catalyst and Bank 2 Sensor 2 is after catalyst right? But what I really wanna know is if Bank 1 and Bank 2 sensor 2 are both the same? If my part numbers are correct and match up they should be. The only ones that differ are Bank 1 Sensor 1 and Bank 2 Sensor 1. Please LEXUS FANATIC help me out. If this correct info for a 2001 Lexus GS430. 
????
... Is this accurate for a GS430 2001? And If so okay I get it. Bank 1 Sensor 1 is on driver side (left) before the catalyst so that makes it UPSTREAM. And Bank 1 Sensor 2 is on driver side (left... DUHH... lol) after catalyst meaning DOWNSTREAM. Correct? So Bank 2 Sensor 1 is on passenger side (right) before catalyst and Bank 2 Sensor 2 is after catalyst right? But what I really wanna know is if Bank 1 and Bank 2 sensor 2 are both the same? If my part numbers are correct and match up they should be. The only ones that differ are Bank 1 Sensor 1 and Bank 2 Sensor 1. Please LEXUS FANATIC help me out. If this correct info for a 2001 Lexus GS430. ????
The following users liked this post:
faithmkss (12-02-23)
04-09-12, 12:51 PM
#39
i will have all 4 OEM ones for sale for cheap if u want aneidiaz....i installed those 4 denso's i listed earlier....
also i dunno why i listed it as i did early with the part #'s saying left/right side i will update it l8r with driver/passenger side as when i was under my car this weekend i forgot if i meant left in the car or under the car and confused myself....i had to look up this post and read it to find out lol
also i dunno why i listed it as i did early with the part #'s saying left/right side i will update it l8r with driver/passenger side as when i was under my car this weekend i forgot if i meant left in the car or under the car and confused myself....i had to look up this post and read it to find out lol
04-10-12, 02:41 PM
#42
I have a 99 GS300 and Bank 1 is actually towards the front of the car not driver's side, and bank 2 is towards the firewall. All of them are on the passenger side of the car/engine; 2 by 3 sets of exhaust manifolds.
Therefore, Bank 1 Sensor 1 is upstream/before Cat on the manifold set towards front of the car and Bank 1 Sensor 2 is downstream/after Cat on manifold set towards front of the car, same concept for Bank 2 sensors except they are on the manifold set towards the firewall.
I hope that helps. No such a thing as Driver side or Passenger side; and to "i ride" who posted that picture, our cars don't have V6 engines, but rather Inline-6 engines, and are RWD not FWD.
Therefore, Bank 1 Sensor 1 is upstream/before Cat on the manifold set towards front of the car and Bank 1 Sensor 2 is downstream/after Cat on manifold set towards front of the car, same concept for Bank 2 sensors except they are on the manifold set towards the firewall.
I hope that helps. No such a thing as Driver side or Passenger side; and to "i ride" who posted that picture, our cars don't have V6 engines, but rather Inline-6 engines, and are RWD not FWD.
04-12-12, 07:05 AM
#43
Lol Denso isn't made in the USA....If you ever change your spark plugs yourself you will see that Toyota/Lexus installed 4 Denso plugs and 4 NGK plugs in your car so they definitely trust Denso.....Denso is on the same level as NGK.
12-23-13, 06:04 PM
#45
Lexus Test Driver
Thank you CL!!! To everyone!!! Reading you guys talk about your cars and meticuslously maintain them in your own individual ways has taught me ALLOT!!! My car has been very good to me thru what I've learned. I'm so glad I've interacted with you guys. Really, Thank you guys! Merry Xmas to everyone! May your families and you be in the best of health!