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P0032 and P0051

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Old Dec 1, 2019 | 07:05 PM
  #1  
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Default P0032 and P0051

Hi Guys

I need help.

I have 2005 Lexus GX470. A few weeks ago, my check engine went on. Scanned it and it was P0032 and P0051. It is referencing Bank 2 Sensor 1 and Bank 1 Sensor 1.
I've bought 2 new Denso Direct Fit sensor. Installed them. Turned on the car, it ran for 30 seconds and the check engine came back. (did a reset a few times).
After that, i drove around for 15 min, the car nice and warm and then i reset the check engine again. It went away. Went insde the store, was in there for 10 min, came out and no check engine. Got home, left the car fora about 1 hour. Turned on and check engine came back.
Seems to be that i doing it, when the car is cold only.
I'm stumped. Did anyone have this issue or can give any advice.
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Old Dec 3, 2019 | 01:17 PM
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You need to give more info to help in any way. If you bought your sensors online through ebay or somewhere similar a good chance they could be Chinese fakes.
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Old Dec 4, 2019 | 05:28 PM
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Originally Posted by Muffinizer
You need to give more info to help in any way. If you bought your sensors online through ebay or somewhere similar a good chance they could be Chinese fakes.
They are Denso. Bought from Amazon
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Old Dec 5, 2019 | 08:21 AM
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What were the part numbers of the sensors that you installed? The 03-04 part is different than 06-09. Also not to ask the obvious but you replaced the pre-cat O2 sensors correct?
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