GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Bank 1 sensor 1 and bank 1 sensor 2 help

Thread Tools
 
Search this Thread
 
Old 03-11-13, 09:08 AM
  #1  
JKgs
Driver School Candidate
Thread Starter
 
JKgs's Avatar
 
Join Date: Mar 2013
Location: MD
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default Bank 1 sensor 1 and bank 1 sensor 2 help

Help...
Can anyone help me with the location of bank 1 sensor 1 and bank 1 sensor 2 on a 2003 gs300. Looking for any info... Denso part numbers, upstream down etc... The error code for the bank 1 sen 1 was p0031 and the code for bank 1 sensor 2 is p0037

Thanks again
Old 03-11-13, 09:47 AM
  #2  
mk2tmr2
Lead Lap
iTrader: (1)
 
mk2tmr2's Avatar
 
Join Date: Jan 2009
Location: TX
Posts: 512
Likes: 0
Received 1 Like on 1 Post
Default

They're in the exhaust.

Did you try Google? I just took 2 seconds to type "gs300 bank 1 sensor 2" into Google and the very first result was a "how to" thread on this very forum. https://www.clublexus.com/forums/mai...ode-p0141.html

The diagram in that thread should be all the info you need to replace both sensors.

Put your flame suit on....

Last edited by mk2tmr2; 03-11-13 at 09:50 AM.
Old 03-11-13, 12:35 PM
  #3  
subzero32
Driver
iTrader: (1)
 
subzero32's Avatar
 
Join Date: Oct 2008
Location: GA
Posts: 139
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by mk2tmr2
They're in the exhaust.

Did you try Google? I just took 2 seconds to type "gs300 bank 1 sensor 2" into Google and the very first result was a "how to" thread on this very forum. https://www.clublexus.com/forums/mai...ode-p0141.html

The diagram in that thread should be all the info you need to replace both sensors.

Put your flame suit on....
That diagram is very useful. I just did bank 1 sensor 2 and bank 2 sensor 1. It took alot of penetrating oil and heat but I got them replaced. Now I need to replace bank 2 sensor 2 which is under the passenger carpet. I put in two Bosch sensors from Autozone. If you cross reference the Denso part # to the ones listed on Amazon you can get them for well under $100. No flame suit needed yet my Lexus friend, I'm always glad to help. Others will not be so kind.
Old 03-11-13, 12:48 PM
  #4  
mk2tmr2
Lead Lap
iTrader: (1)
 
mk2tmr2's Avatar
 
Join Date: Jan 2009
Location: TX
Posts: 512
Likes: 0
Received 1 Like on 1 Post
Default

I did bank 2 sensor 2 with a generic Bosch sensor. It was a very easy job. It's probably easier than both of the Bank 1 sensors because you can get plenty of leverage on the sensor with a long breaker bar. Access to the plug under the passenger carpet is dead easy.
Old 03-11-13, 01:28 PM
  #5  
Debonair
iModerate
 
Debonair's Avatar
 
Join Date: May 2007
Location: 408 NOR CAL
Posts: 3,397
Received 40 Likes on 28 Posts
Default

Originally Posted by JKgs
Help...
Can anyone help me with the location of bank 1 sensor 1 and bank 1 sensor 2 on a 2003 gs300. Looking for any info... Denso part numbers, upstream down etc... The error code for the bank 1 sen 1 was p0031 and the code for bank 1 sensor 2 is p0037

Thanks again
Looky HERE.
Old 03-11-13, 04:20 PM
  #6  
subzero32
Driver
iTrader: (1)
 
subzero32's Avatar
 
Join Date: Oct 2008
Location: GA
Posts: 139
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by mk2tmr2
I did bank 2 sensor 2 with a generic Bosch sensor. It was a very easy job. It's probably easier than both of the Bank 1 sensors because you can get plenty of leverage on the sensor with a long breaker bar. Access to the plug under the passenger carpet is dead easy.
Did you just pry up the door sill with a screw driver to get under the carpet?
Old 03-11-13, 05:47 PM
  #7  
mk2tmr2
Lead Lap
iTrader: (1)
 
mk2tmr2's Avatar
 
Join Date: Jan 2009
Location: TX
Posts: 512
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by subzero32
Did you just pry up the door sill with a screw driver to get under the carpet?
Nope. Just my fingers. You can just pull it up. It will pop out of it's retainers with a little bit of muscle.
Old 03-11-13, 07:16 PM
  #8  
wvpptzff
Driver School Candidate
 
wvpptzff's Avatar
 
Join Date: Mar 2013
Location: NC
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

Access to the plug under the passenger carpet is dead easy.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ziliton
IS - 2nd Gen (2006-2013)
2
02-11-17 02:35 PM
Yamaheart
GS - 2nd Gen (1998-2005)
2
02-11-15 07:14 PM
mortirius
ES - 5th Gen (2007-2012)
7
07-28-12 03:40 PM
kingof901s
GS - 2nd Gen (1998-2005)
7
07-23-09 11:22 AM
gsCrazy
GS - 2nd Gen (1998-2005)
4
10-29-07 01:54 PM



Quick Reply: Bank 1 sensor 1 and bank 1 sensor 2 help



All times are GMT -7. The time now is 04:34 AM.