ES - 5th Gen (2007-2012) Discussion topics related to 2007+ ES350

Help, getting p0158, p0157, and p0441 on my 2010 es

Thread Tools
 
Search this Thread
 
Old 06-11-23, 08:13 AM
  #1  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Default Help, getting p0158, p0157, and p0441 on my 2010 es

Hello guys, please I need help. I got a used 2010 lexus es350 with p0157, p0158 p0037, and p0441 and p0420. I was told there was cat inside but after checking, I discovered that the cat was removed. I have replaced the bank 2 sensor 2 but it didn't fix any code. I have replaced the purge solenoid and canister purge valve, it didn't fix the p0441. I have examined the exhaust and I can't seem to find any leaks.
I took the car to an electrician and he said all the problems will go away once I replaced the catalyst.
Replacing catalyst is extremely expensive in my country and i plan to fix oxygen sensor spacers on both downstream sensors..

Please, has anyone experienced this issue before and what they did to fix it. Also will Replacing the cat clear all the above codes?
Old 06-11-23, 12:37 PM
  #2  
ESh
Lead Lap
 
ESh's Avatar
 
Join Date: Jun 2014
Location: MI
Posts: 3,832
Received 1,010 Likes on 759 Posts
Default

First, I would put the spacers on both post-cat sensors.
The following users liked this post:
henro4niger (06-12-23)
Old 06-11-23, 11:40 PM
  #3  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Default

Originally Posted by ESh
First, I would put the spacers on both post-cat sensors.
Thanks a lot, does that mean that you also believe that the absence of the catalysts causes all the codes? I really appreciate your input, I have ordered for the spacers and also ordered for brand new downstream sensors (234-4064, and 234-4260). I will replace the sensors again and the spacers and give feedback.
Old 06-12-23, 02:36 AM
  #4  
ESh
Lead Lap
 
ESh's Avatar
 
Join Date: Jun 2014
Location: MI
Posts: 3,832
Received 1,010 Likes on 759 Posts
Default

The Sensor 2 monitors the CAT, and if there's no cat it will report it.
I know that P0420 and P0430 are active only when the catalyst efficiency is below threshold, that means no cat or bad cat.
With the spacers you will eliminate that code.
The other code you have is the O2 bad heater. In that case the sensor has to be replaced.
The following users liked this post:
henro4niger (06-12-23)
Old 06-12-23, 02:48 AM
  #5  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Thumbs up

Originally Posted by ESh
The Sensor 2 monitors the CAT, and if there's no cat it will report it.
I know that P0420 and P0430 are active only when the catalyst efficiency is below threshold, that means no cat or bad cat.
With the spacers you will eliminate that code.
The other code you have is the O2 bad heater. In that case the sensor has to be replaced.
Thanks a lot, I appreciate the support.
The following users liked this post:
ESh (06-12-23)
Old 06-12-23, 03:31 AM
  #6  
ESh
Lead Lap
 
ESh's Avatar
 
Join Date: Jun 2014
Location: MI
Posts: 3,832
Received 1,010 Likes on 759 Posts
Default

Regarding the P0441, you have a leak somewhere. Check the gas cap o-ring for cracks. Also, when you close it, turn it until you hear one click.
The following users liked this post:
henro4niger (06-12-23)
Old 07-01-23, 04:47 AM
  #7  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Default

Originally Posted by ESh
The Sensor 2 monitors the CAT, and if there's no cat it will report it.
I know that P0420 and P0430 are active only when the catalyst efficiency is below threshold, that means no cat or bad cat.
With the spacers you will eliminate that code.
The other code you have is the O2 bad heater. In that case the sensor has to be replaced.
hello sir, I finally got the spacers and two new downstream sensors. However, the two codes p0158 and p0157 still persists. Any idea what I can check further?
Old 07-01-23, 05:50 AM
  #8  
ESh
Lead Lap
 
ESh's Avatar
 
Join Date: Jun 2014
Location: MI
Posts: 3,832
Received 1,010 Likes on 759 Posts
Default

Did you check the wiring of the B2S2 sensor?
There may be a bad wire or a bad sensor.
The following users liked this post:
henro4niger (07-01-23)
Old 07-01-23, 08:18 AM
  #9  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Default

Originally Posted by ESh
Did you check the wiring of the B2S2 sensor?
There may be a bad wire or a bad sensor.
Thank you so much for the prompt response. Yes, I checked the wiring and it seems fine. I check the sensor reading and it kept fluctuating. I guess if the wiring is bad, I won't get any reading. Also when I disconnected the sensor, the reading dropped to zero. This is the spacer I bought https://www.aliexpress.com/item/1005...e63d1802T4RWPe

Old 07-01-23, 08:19 AM
  #10  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Default

Do you think that with the absense of catalytic converters, that the spacers won't work?
Old 07-01-23, 08:21 AM
  #11  
ESh
Lead Lap
 
ESh's Avatar
 
Join Date: Jun 2014
Location: MI
Posts: 3,832
Received 1,010 Likes on 759 Posts
Default

Do you have the freeze frame data?
Old 07-01-23, 10:08 AM
  #12  
henro4niger
9th Gear
Thread Starter
 
henro4niger's Avatar
 
Join Date: Jun 2023
Location: Abuja
Posts: 9
Received 1 Like on 1 Post
Default

Originally Posted by ESh
Do you have the freeze frame data?
no, I will have to scan with a more advanced tool to get the freeze frame data
Old 12-06-23, 02:58 PM
  #13  
forumqueen
8th Gear
 
forumqueen's Avatar
 
Join Date: Dec 2022
Location: NS
Posts: 8
Received 2 Likes on 2 Posts
Default

Originally Posted by henro4niger
no, I will have to scan with a more advanced tool to get the freeze frame data

hi I am having this exact problem.. any updates?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rxlexus350
RX - 3rd Gen (2010-2015)
7
04-14-23 04:05 PM
Rxlexus350
RX - 3rd Gen (2010-2015)
4
03-20-23 07:24 AM
vighnesh
Hybrid Technology
3
05-07-19 02:03 PM
odufu1
RX - 3rd Gen (2010-2015)
5
08-13-17 05:07 PM
carmaster
LX - 3rd Gen (2008-2021)
0
01-11-11 04:43 AM



Quick Reply: Help, getting p0158, p0157, and p0441 on my 2010 es



All times are GMT -7. The time now is 12:15 AM.