Lexus RX 330 Error code P2238 and P2241

Tiny
SRINI123
  • MEMBER
  • 2004 LEXUS RX 330
  • 3.3L
  • V6
  • AWD
  • AUTOMATIC
  • 130,000 MILES
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

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Tuesday, February 25th, 2014 AT 1:00 AM

13 Replies

Tiny
HMAC300
  • EXPERT
That is an A/F sensor shorted out or problem in that area
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Wednesday, February 26th, 2014 AT 7:39 AM
Tiny
SRINI123
  • MEMBER
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.
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Wednesday, February 26th, 2014 AT 10:00 AM
Tiny
SRINI123
  • MEMBER
Is it ok to use universal sensors?
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Wednesday, February 26th, 2014 AT 10:02 AM
Tiny
HMAC300
  • EXPERT
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.
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Wednesday, February 26th, 2014 AT 10:02 AM
Tiny
SRINI123
  • MEMBER
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.
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Wednesday, February 26th, 2014 AT 10:26 AM
Tiny
SRINI123
  • MEMBER
Is there any opinion to repair instead of replacing?

AF sensors are costlier and there are no after market parts available in Web.
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Wednesday, February 26th, 2014 AT 10:43 AM
Tiny
HMAC300
  • EXPERT
An a/f sensor is what an O2 sensor isrock auto has them form $80-120 and denso is the supplier of oem parts.
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Wednesday, February 26th, 2014 AT 12:02 PM
Tiny
HMAC300
  • EXPERT
Heres a pic item A3 and A4 but I think it's beyond your capabilities.
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Wednesday, February 26th, 2014 AT 12:05 PM
Tiny
HMAC300
  • EXPERT
Forgot pic
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Wednesday, February 26th, 2014 AT 12:07 PM
Tiny
SRINI123
  • MEMBER
Thank you. When AF sensor fails engine jerks while accelerate?
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Thursday, February 27th, 2014 AT 8:54 AM
Tiny
HMAC300
  • EXPERT
If it'snot working correctly it can cause different problems. I have no further suggestions.
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Thursday, February 27th, 2014 AT 9:26 AM
Tiny
SRINI123
  • MEMBER
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?
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Saturday, March 1st, 2014 AT 10:31 AM
Tiny
HMAC300
  • EXPERT
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
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Saturday, March 1st, 2014 AT 11:13 AM

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