What O2 Sensor For P0138 & P2195
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Driver School Candidate
Joined: Mar 2019
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From: WA
What O2 Sensor For P0138 & P2195
Hello all and thanks in advance for the help.
I am new here, but have been lurking and searching, but can’t quite figure out which O2 sensor I need to replace. Or do I need to replace both. I believe only 1 is bad, causing the other to give a bad reading, but in all my reading im not sure.
Car is a 2007 IS 250 AWD with 98825 miles. VSC and check engine came on. Scan showed
P0138 O2 sensor circuit high voltage bank 1 sensor 2
P2195 O2 sensor signal biased/stuck lean bank 1 sensor 1
Thank you.
I am new here, but have been lurking and searching, but can’t quite figure out which O2 sensor I need to replace. Or do I need to replace both. I believe only 1 is bad, causing the other to give a bad reading, but in all my reading im not sure.
Car is a 2007 IS 250 AWD with 98825 miles. VSC and check engine came on. Scan showed
P0138 O2 sensor circuit high voltage bank 1 sensor 2
P2195 O2 sensor signal biased/stuck lean bank 1 sensor 1
Thank you.
Thread Starter
Driver School Candidate
Joined: Mar 2019
Posts: 3
Likes: 0
From: WA
Racer
Joined: Mar 2016
Posts: 1,583
Likes: 310
From: Plano Texas
P0138 is the bank 1 sensor 2 has a high voltage level for too long.
P2195 is the bank 1 sensor 1 has a high voltage level saying the exhaust is too lean.
Bank 1 is on the passenger side of the car.
Sensor 1 is the sensor closest to the exhaust manifold, also called the upstream sensor.
Sensor 2 is after the catalytic converter, also called the downstream sensor.
The sensor 1 (P02195) is probably the problem and "confusing" the sensor 2.
P2195 is the bank 1 sensor 1 has a high voltage level saying the exhaust is too lean.
Bank 1 is on the passenger side of the car.
Sensor 1 is the sensor closest to the exhaust manifold, also called the upstream sensor.
Sensor 2 is after the catalytic converter, also called the downstream sensor.
The sensor 1 (P02195) is probably the problem and "confusing" the sensor 2.
Racer
Joined: Feb 2017
Posts: 1,270
Likes: 332
From: Ontario
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