GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

O2 Sensor P2197 and P0158 Codes

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Old 06-12-18, 12:33 PM
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jafoo
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Default O2 Sensor P2197 and P0158 Codes

I keep getting the P2197 and P0158 codes. I reset and they come back within a day or two. I cleaned the air box and MAF sensor (use K&N when off roading but not currently in). New gas cap. I am going to test the O2 sensors. Bank 2 Sensor 1 looks like passenger side before cat and Bank 2 Sensor 2 I assume is after cat passenger side.
Anyone know ohm's the sensors for this vehicle should read?
Can anyone verify locations I listed are correct? I read one post and I see the years change locations so just want to verify.
Any other tips?
Thanks for any advice
2007 GX470
Old 08-12-18, 04:32 PM
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jafoo
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Just an update on this issue. Oxygen sensor bank 2 sensor 1 (passenger upper). New Denso worked great.
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Tdoll (09-08-18)
Old 08-13-18, 10:50 AM
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OG Dada
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Thanks for the info! Has always wondered if the O2 sensors ever go bad. I always thought the only tell tale was if you're getting bad gas mileage.
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