Lexus RX 330 Error code P2238 and P2241

2004 LEXUS RX 330
130,000 MILES • 3.3L • V6 • AWD • AUTOMATIC
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
Hi,
Thanks for helping.
I have Lexus RX 330 Japan made.
There is Check Engine and VSC light. I did check with OBD scanner. There are Error code P2238 and P2241

When I check with Mechanic, he told me to change O2 sensor.
I am just checking in internet, there are lots of conflicts. Some one say O2 sensor some one say A/F sensor.

Can you please let me know which sensor to change and any universal sensors works in this case ?

Thanks & Regards
Srini

Feb 25, 2014 at 1:00 AM
Advertisement
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
that is an A/F sensor shorted out or problem in that area
Feb 26, 2014 at 7:39 AM
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
Thanks for your reply. There is confusion due to OBD database. It says all are O2 sensors But we need to differentiate based location data like bank1 sensor 1 and bank2 sensor 1.
Feb 26, 2014 at 10:00 AM
Advertisement
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
Is it ok to use universal sensors ?
Feb 26, 2014 at 10:02 AM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
an O2 sensor is not going to fix this . this is caused by the a/f sensor shorted out or having problems in wiring to a/f sensor. but if you really must know, bank 1 is where #1 is and #1 sensor is before converter.#2 sensor after converter.
Feb 26, 2014 at 10:02 AM
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
I got this image from other thread. It says AF sensors are top of the engine and O2 sensors are bottom of engine.

Thanks for your replies.
Image (Click to enlarge)
Attached Media
Feb 26, 2014 at 10:26 AM
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
Is there any opinion to repair instead of replacing ?

AF sensors are costlier and there are no after market parts available in Web.
Feb 26, 2014 at 10:43 AM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
an a/f sensor is what an O2 sensor isrock auto has them form $80-120 and denso is the supplier of oem parts.
Feb 26, 2014 at 12:02 PM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
heres a pic item A3 and A4 but I think it's beyond your capabilities.
Feb 26, 2014 at 12:05 PM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
forgot pic
Image (Click to enlarge)
Attached Media
Feb 26, 2014 at 12:07 PM
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
Thank you. When AF sensor fails engine jerks while accelerate ?

Feb 27, 2014 at 8:54 AM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
if it'snot working correctly it can cause different problems. I have no further suggestions.
Feb 27, 2014 at 9:26 AM
Avatar
SRINI123
  • MEMBER
  • 7 POSTS
OOOPs....mechanic replaced AF sensor and spark plugs, removed battery and reconnected Original error codes gone.. Now new error P0012. And driver side window controller also not working. Any ideas ?
Mar 1, 2014 at 10:31 AM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
IN THE FUTURE REPOST AS A NEW QUESTION OTHERWISE IT WILL NOT GET ANSWERED. Scan for codes for power window a pro will need to do it. it may need resetting.
it is a cam timing problem and a pro needs to fix this with a scanner. it's out of synch
Mar 1, 2014 at 11:13 AM