Need clarification with the Oxygen Sensor
#1
Pit Crew
Thread Starter
Need clarification with the Oxygen Sensor
Attached is a PDF file on the components of the emission system.
My question is about the identification name of the Oxygen Sensor (as vs. A/F sensor). On Page EC3, the oxygen sensor is identified as Bank 1 Sensor 2, but on Page EC11 the same oxygen sensor is identified as Bank 1 Sensor 1. Which identification is correct?
Also, what is the size of the two nuts that fix the oxygen sensor to the mounting bolts on the pipe? What does the mark 22(100, 14) (next to the nuts on Page EC11) mean?
Thank you for your help.
My question is about the identification name of the Oxygen Sensor (as vs. A/F sensor). On Page EC3, the oxygen sensor is identified as Bank 1 Sensor 2, but on Page EC11 the same oxygen sensor is identified as Bank 1 Sensor 1. Which identification is correct?
Also, what is the size of the two nuts that fix the oxygen sensor to the mounting bolts on the pipe? What does the mark 22(100, 14) (next to the nuts on Page EC11) mean?
Thank you for your help.
#2
Driver School Candidate
Identification on page EC3 is correct for the post-cat sensor.
You might want to check out https://www.clublexus.com/forums/rx-...sor-2-diy.html
The part number of the 12mm nuts is 90179-08059
You might want to check out https://www.clublexus.com/forums/rx-...sor-2-diy.html
The part number of the 12mm nuts is 90179-08059
#3
Lexus Champion
Raz is correct, page EC3 is the correct identification. Page EC11 is in error, not the 1st one I've ever seen in a genuine T/L shop manual. Whoever does their shop manuals doesn't seem to check for accuracy.
#4
Many errors, especially electrical. The troubleshooting instructions for the IACV are entirely wrong - written for the IACV in my Avalon. To their credit, Lexus gave me a complete refund for the IACV I bought unnecessarily.
#5
Pit Crew
Thread Starter
Thanks for the clarification about the oxygen sensor identification.
Regarding the size of the nuts: it took me many tries and I eventually found out that the nuts are of M8 x 1.25 on both of the 2000 RX300 vehicles in my household.
In the link to Lexmex's DIY for replacing the oxygen sensor, it shows one-nut-and-one- bolt mounting, while on my vehicles the mounting uses two M8 x 1.25 nuts with a protective shield (the protector) exactly as shown in the attached shop manual. In other words, the mounting on my two RX300 is somehow different from those shown in Lexmex's pictures. No idea why.
Regarding the size of the nuts: it took me many tries and I eventually found out that the nuts are of M8 x 1.25 on both of the 2000 RX300 vehicles in my household.
In the link to Lexmex's DIY for replacing the oxygen sensor, it shows one-nut-and-one- bolt mounting, while on my vehicles the mounting uses two M8 x 1.25 nuts with a protective shield (the protector) exactly as shown in the attached shop manual. In other words, the mounting on my two RX300 is somehow different from those shown in Lexmex's pictures. No idea why.
#6
Driver School Candidate
#7
Lexus Champion
In the link to Lexmex's DIY for replacing the oxygen sensor, it shows one-nut-and-one- bolt mounting, while on my vehicles the mounting uses two M8 x 1.25 nuts with a protective shield (the protector) exactly as shown in the attached shop manual. In other words, the mounting on my two RX300 is somehow different from those shown in Lexmex's pictures. No idea why.
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jacobzking
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