How to change Bank 1 Sensor 2 Trouble OBDII Code P0141...Easy As 1,2,3...
#1
How to change Bank 1 Sensor 2 Trouble OBDII Code P0141...Easy As 1,2,3...
I had a problem looking for someone on this website to show me how to install and located Bank 1 Sensor 2 02 sensor for my 2000 Lexus GS300. After doing research and finding a great 02 sensor part guy on ebay I took on the challenge and found it very easy to do once you get the right part and tool to do the job.
Tools neded or what I used:
* Stanley 3/4 drive expandable ratchet
* 02 Sensor removal socket wrench (to remove the 02 sensor)
* 10mm socket 3/4 drive (to disconnect battery cables)
* Small flat head screwdriver (to detach sensor male and female part)
* Liquid Wrench by GUNK or other lubricating spray to loosen sensor
WD40 would probably work also
* Small flashlight to locate sensor from top of engine
* 02 Sensor Part #14260 from PartREX - ebay name te_x_as
Great communication and excellent support from these guys. The length was a little shorter than the original but had enough slack and more to finish the job. I think you can also use the same sensor part for the front one which is bank 1 Sensor 1.
** Photo taken with hood up and looking down into the engine on the passenger side. Bank 1 Sensor 2 is the bottom one circled in yellow. Easy to remove with the Stanley 3/8 drive expandable ratchet.
I listed the tools used and also the correct sensor to change for Bank 1 Sensor 2. The expandable Stanley ratchet was bought fromWal-Mart and came with standard socket set, not metric which I wanted. Paid about $28 for it. The 02 Sensor removal 3/8 drive socket wrench was bought also from ebay for $7 + $5 shipping = $12 from ebay name up4salebytaw. I seen it at Checkers Auto later but don't remember the cost. Liquid Wrench by GUNK was about $2.29 at Wal-Mart also. I know the LEXUS dealer would charge over $250++ to change it, so I tried and found it very easy to do.
1. Park your car in the shade, lift engine hood, wait 1/2 hour until engine is cooler so you can spray the Liquid Wrench around the base of the sensor.
2. After 1/2 hour respray another small dose of Liquid Wrench around sensor and unhook 2 plastic black clips that hold the sensor wires together.
3. Remove the sensor socket area (which is attached to the car) by sliding it in a forward motion. This will make it easier to attach and see how the sensor fitting fits.
4. With a small flat head screwdriver look at the gray female sensor area where you can put a flat head screwdriver to push down a release clip. Keep the clip pressed down and pull apart. The male and female part will easily come apart when pulled.
5. Next attach the 02 Sensor wrench socket to the bottom Bank 1 Sensor 2 Sensor and once fitted on, attach your expandable ratchet and set it for left to loosen.
6. Loosen sensor by pulling up on the ratchet handle loose.
7. Remove 02 sensor wrench and unscrew the rest by hand until 02 sensor is out.
8. Wipe down with paper towel the sensor area where you sprayed the Liquid Wrench.
9. Hand tighten the new 02 Sensor (te_x_as part #14260) and finish tightening with 02 sensor wrench and ratchet until tight as an oil drain plug. DO NOT OVER TIGHTEN or you may strip the treads.
10. Attach gray plastic male end to female end.
11. Slide back and attach gray plastic male and female part to clip on body.
12. Put back black plastic wire holders.
13. Re-connect the battery teminals with 10mm socket.
14. All Done. You will have to reset your radio stations and A/C settings again.
15. Done fast and easy without even jacking up your car!
I hope this helps all who wants to try it themselves. Very easy to do once you find the trouble code using the OBDII scanner (bought from eaby also) and having the right parts in hand. GOOD LUCK!!! DanozLS430
Tools neded or what I used:
* Stanley 3/4 drive expandable ratchet
* 02 Sensor removal socket wrench (to remove the 02 sensor)
* 10mm socket 3/4 drive (to disconnect battery cables)
* Small flat head screwdriver (to detach sensor male and female part)
* Liquid Wrench by GUNK or other lubricating spray to loosen sensor
WD40 would probably work also
* Small flashlight to locate sensor from top of engine
* 02 Sensor Part #14260 from PartREX - ebay name te_x_as
Great communication and excellent support from these guys. The length was a little shorter than the original but had enough slack and more to finish the job. I think you can also use the same sensor part for the front one which is bank 1 Sensor 1.
** Photo taken with hood up and looking down into the engine on the passenger side. Bank 1 Sensor 2 is the bottom one circled in yellow. Easy to remove with the Stanley 3/8 drive expandable ratchet.
I listed the tools used and also the correct sensor to change for Bank 1 Sensor 2. The expandable Stanley ratchet was bought fromWal-Mart and came with standard socket set, not metric which I wanted. Paid about $28 for it. The 02 Sensor removal 3/8 drive socket wrench was bought also from ebay for $7 + $5 shipping = $12 from ebay name up4salebytaw. I seen it at Checkers Auto later but don't remember the cost. Liquid Wrench by GUNK was about $2.29 at Wal-Mart also. I know the LEXUS dealer would charge over $250++ to change it, so I tried and found it very easy to do.
1. Park your car in the shade, lift engine hood, wait 1/2 hour until engine is cooler so you can spray the Liquid Wrench around the base of the sensor.
2. After 1/2 hour respray another small dose of Liquid Wrench around sensor and unhook 2 plastic black clips that hold the sensor wires together.
3. Remove the sensor socket area (which is attached to the car) by sliding it in a forward motion. This will make it easier to attach and see how the sensor fitting fits.
4. With a small flat head screwdriver look at the gray female sensor area where you can put a flat head screwdriver to push down a release clip. Keep the clip pressed down and pull apart. The male and female part will easily come apart when pulled.
5. Next attach the 02 Sensor wrench socket to the bottom Bank 1 Sensor 2 Sensor and once fitted on, attach your expandable ratchet and set it for left to loosen.
6. Loosen sensor by pulling up on the ratchet handle loose.
7. Remove 02 sensor wrench and unscrew the rest by hand until 02 sensor is out.
8. Wipe down with paper towel the sensor area where you sprayed the Liquid Wrench.
9. Hand tighten the new 02 Sensor (te_x_as part #14260) and finish tightening with 02 sensor wrench and ratchet until tight as an oil drain plug. DO NOT OVER TIGHTEN or you may strip the treads.
10. Attach gray plastic male end to female end.
11. Slide back and attach gray plastic male and female part to clip on body.
12. Put back black plastic wire holders.
13. Re-connect the battery teminals with 10mm socket.
14. All Done. You will have to reset your radio stations and A/C settings again.
15. Done fast and easy without even jacking up your car!
I hope this helps all who wants to try it themselves. Very easy to do once you find the trouble code using the OBDII scanner (bought from eaby also) and having the right parts in hand. GOOD LUCK!!! DanozLS430
Last edited by DanozLS430; 06-03-07 at 11:18 AM.
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aEO 37 (05-17-18)
#6
P0141 is Bank 1 Sensor 2 which is the sensor after the cat convertor on the exhaust manifold for Cyclinder 1,2,3 (1 being the front of the car of course) The description for the "O2 Oxygen Sensor Lexus GS300 IS300 SC300 14260" sold by ebay seller TE_X_AS states that it is for FRONT, CYL 4-6.
That is what confuses me. I was trying to find the manufacturer part number and it is 89465-30480 (for my 2000 GS300) but I have a hard time confirming it.
That is what confuses me. I was trying to find the manufacturer part number and it is 89465-30480 (for my 2000 GS300) but I have a hard time confirming it.
#7
ebay Item number: 140154173374 is 14200 which is described as FRONT, LOWER. It might mean Cycl 1-3, after the cat convertor.
Confusing isn't it when they don't use part numbers?
Confusing isn't it when they don't use part numbers?
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#8
Ok. I ended going to Autozone to buy the o2 sensor. Costed me $70 for a Bosch universal one that i have to do my own wire soldering. Lesson I learned is.... Don't buy those cheap $30 from ebay. They will give CEL at times. Buy only Bosch or Denso (which is what Lexus uses) and no need to buy the exact one with the right connector when you can do your own wire soldering. That saves $80 and the sensor itself is the same. Remember to know you are buying the sensor BEFORE or AFTER the cat converter.
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