Toyota P0141 Diagnose & Repair: 98 - 00 Rav4 Oxygen Sensor P0141 Bank 1 Sensor 2 , avoid Denso fakes
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- Опубліковано 4 лют 2025
- This video shows the DIY diagnostics and repair for the P0141 "Bank 1 Sensor 2" code. Check the Pinned Comment or below for Timestamps, Part Numbers, and Torque Values:
00:30 Diagnostics from the FSM
02:32 Location of the sensor (post-cat heated oxygen sensor)
03:08 Location of the electrical connector (inside, under the
passenger seat carpet)
03:54 Disconnect the oxygen sensor
04:17 Test the oxygen sensor for resistance across pins 1 and
2 (Good range is 11 to 16 Ohms at 68 degrees F)
06:56 ECM test with a known good sensor
12:54 ECM test with a known bad sensor
14:30 Remove the old oxygen sensor (14mm, if original nuts)
17:18 Remove the old gasket
18:30 Carefully inspect your replacement sensor to be sure it
is not counterfeit: use only a Denso sensor (for this
application, Denso 234-4214)
21:04 Test the new sensor before installing
21:23 New and old Denso sensors, side-by-side
22:32 Transfer the old bracket to the new sensor
23:05 Note about the grommet clamp
23:39 Clean and inspect the gasket surface on the exhaust
pipe
23:52 Be sure to use a new gasket (Denso part includes a
gasket, or use Toyota 89466-20020 or Dorman 47021)
24:10 Install a new cover/shield if missing (Toyota 89437-
60030)
24:15 Install the new gasket, sensor, cover, and nuts (Toyota pinch nuts 90179-08059, or other locking nuts)
25:40 Torque the nuts to 32 ft-lbs
26:49 Connect the sensor electrical
27:43 Clear the code (use a scanner, or disconnect the battery at the negative terminal)
Link for DIY video if you need to replace the oxygen sensor
studs:
• Toyota Exhaust Stud Re...
Link for DIY video if you need to use an extractor to remove
the nuts:
• Kobalt Bolt Extractors...
I hope this video was helpful for you. Thank you for
watching, and good luck with your repair!
I hope this video is helpful for you. Thank you for watching, and good luck with your repair!
Timestamps, Part Numbers, Torque Values, and Links:
Timestamps, Part Numbers, Torque Values, and Links:
00:30 Diagnostics from the FSM
02:32 Location of the sensor (post-cat heated oxygen sensor)
03:08 Location of the electrical connector (inside, under the
passenger seat carpet)
03:54 Disconnect the oxygen sensor
04:17 Test the oxygen sensor for resistance across pins 1 and
2 (Good range is 11 to 16 Ohms at 68 degrees F)
06:56 ECM test with a known good sensor
12:54 ECM test with a known bad sensor
14:30 Remove the old oxygen sensor (14mm, if original nuts)
17:18 Remove the old gasket
18:30 Carefully inspect your replacement sensor to be sure it
is not counterfeit: use only a Denso sensor (for this
application, Denso 234-4214)
21:04 Test the new sensor before installing
21:23 New and old Denso sensors, side-by-side
22:32 Transfer the old bracket to the new sensor
23:05 Note about the grommet clamp
23:39 Clean and inspect the gasket surface on the exhaust
pipe
23:52 Be sure to use a new gasket (Denso part includes a
gasket, or use Toyota 89466-20020 or Dorman 47021)
24:10 Install a new cover/shield if missing (Toyota 89437-
60030)
24:15 Install the new gasket, sensor, cover, and nuts (Toyota pinch nuts 90179-08059, or other locking nuts)
25:40 Torque the nuts to 32 ft-lbs
26:49 Connect the sensor electrical
27:43 Clear the code (use a scanner, or disconnect the battery at the negative terminal)
Link for DIY video if you need to replace the oxygen sensor
studs:
ua-cam.com/video/strorg3T6AA/v-deo.html
Link for DIY video if you need to use an extractor to remove
the nuts:
ua-cam.com/video/UhYJMbRuVc8/v-deo.html
I hope this video was helpful for you. Thank you for
watching, and good luck with your repair!
This is unintentional ASMR, thanks for the video, very informative
Haha, thank you, and thanks for watching! : )
Awesome! Your understanding of these complicated faults and your diagnostic skills are on a whole other level.
Thank you, and thanks for watching! : )
You have a beautiful soothing voice 😊 😍
That's very kind - thanks, and thanks for watching! : )
Your instruction is so thorough. I'm terrified of the ECM. You just go right in. Fabulous.
Haha, I know what you mean! As long as I have the documents and precise instructions from a Toyota FSM, I will poke around on the ECM. But otherwise, I'm with you and I tend to troubleshoot the rest of the circuit first. The only time I've found a Toyota ECM that was actually causing malfunction was in a '01 Rav4, which are notorious for a major ECM failure caused by loose resistors on the board, which is turn cause major, major malfunction of the automatic transmission. Other than that, I haven't seen an ECM on a Toyota cause a fault, so that's why I think it is rare (but possible!). So, luckily most of the time we don't have to mess with ECMs! Thanks for your comment, and thanks for watching : )
Great video! At 22:37 recommend to viewers to clean with a wire brush and spray paint that metal clip. I do this for my 12V battery holder (across the top of the battery) as well, whenever I replace my battery. Thanks for another good vid, even though I don't have a Toyota.
That's a great tip - thanks for sharing! And thanks for watching : )
Excellent video! Very detailed with great camera work.
Thanks! I know a lot of people might have to use a cell phone to while watching a repair video, so I try to get close-up detail that's visible even on the smaller screens. Thanks for watching! : )
Amazing presentation as always 💯! I replaced my Mercedes M113 pre-cat sensor for the same reason. It was difficult to reach so when I put in the new Bosch sensor, I simply make it tighter after 'hand tight' b/c no room to use torque wrench 😅
Thanks! Yes, it is nice when you can get a torque wrench on fasteners, but it's not always possible! Thanks for sharing your tip, and thanks for watching! : )
You provide outstanding content! Thank you.
Thank you, and thanks for watching! : )
Wow! awesome videos. Best of the best. Please make more videos. I Learned so much from every single one of them. BRAVO
Thank you, and thanks for watching! : )
Thanks again, L35! I have P0171: System Too Lean Bank 1 currently and thinking I have to replace either or both O2 sensors. This will help tremendously.
I was able to clean out the Throttle Body and Idle Air Control Valve recently with your help also.
you are a beautiful human being
That's very kind, thank you : )
You taking more work in Co?
No, I'm just the "shadetree mechanic for the family fleet" - I don't have my own shop. Thanks for watching! : )
I’m lucky to have an old RAV in my fleet to make her videos quite useful! :-)))
Thanks for the video. I have a Toyota Rav4 year 2000. I have some difficulties with the upstream Oxygen Sensor. Can you help me?
Great video. Any help with a Crankshaft position sensor code? I’ve replaced the sensor, but still have the code. Much appreciated.
toyota rav4 👍🏼👍🏼👍🏼👍🏼
Rav4's are the best! : )