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RX300 Code P1150

 
Old 03-12-19, 02:59 PM
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rmartindc
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Default RX300 Code P1150

Hello,

I have a 2001 Lexus RX300 with 123,000 miles. I recently have been getting my check engine and VSC lights and when I read the codes I get code P1150 which is the Air/Fuel Ratio Sensor Bank 2 Sensor 1. I replaced that sensor which is located in front of the radiator with an OEM Denso 234-9009 part and have been seeing about a 2 mpg increase (still only getting 13 mpg city). However, after driving 20 miles my check engine and VSC lights came on with code P1150 again. I cleared the codes, drove another 20 or so miles again before both lights came on again and got the same P1150 code. The car did try to stall one time by idling low but that has not happened again.

Any idea why the check engine and VSC light come on and read code P1150 again?

Any help would be appreciated, thanks!
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Old 03-12-19, 08:27 PM
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Nad1370
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Did you buy the sensor at a reputable source?
There is a lot of "FAKE" AF sensors out there.
If you dont mind, how much did you pay for the sensor?

Also if you have a freeze frame data when the code set, post it here so we can decipher it.
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Old 03-13-19, 02:05 PM
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rmartindc
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Originally Posted by Nad1370 View Post
Did you buy the sensor at a reputable source?
There is a lot of "FAKE" AF sensors out there.
If you dont mind, how much did you pay for the sensor?

Also if you have a freeze frame data when the code set, post it here so we can decipher it.
I bought the sensor at my local autoparts store and it was about $180 for the original Denso part. Last night, the car also started getting code P1153. I am including a freeze frame data picture onto this posting too if it is any help.

Thank you!



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