O2 Sensor replacement 2004 ES330 Bank 1 Sensor 2
#1
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Thread Starter
O2 Sensor replacement 2004 ES330 Bank 1 Sensor 2
I've gotten an OBD error repeatedly for the O2 sensor at Bank 1 Sensor 2 for my 2004 ES330. Just ordered the Denso replacement from Amazon and need to know where on the vehicle this goes.
I'm very handy, but don't have a reference manual for the car. Is it under the hood, or under the car by the exhaust?
Please help. I'm expecting the sensor on Saturday, October 12, 2013. Thanks again!
Marty
I'm very handy, but don't have a reference manual for the car. Is it under the hood, or under the car by the exhaust?
Please help. I'm expecting the sensor on Saturday, October 12, 2013. Thanks again!
Marty
#3
Rookie
Thread Starter
No fix o2 Denso on my es330. Used a 234-4209 Universal
I had a zero voltage reading on my Bank 1, Sensor 2 from the OBD computer. This is for a 2004 Lexus ES330. I pulled the original sensor out, and the item number (from the factory unit), is Toyota 89465-33370. The universal Denso replacement number I used is 234-4209.
I reset the OBD, clearing the error code. The new sensor immediately tripped the check engine light, and the code is still Bank 1, Sensor 2. I was getting zero voltage on the old sensor, and with the new Denso, I now get a high voltage error, with 1.250 volts (read from live data stream on my computer). I believe I should be getting near 0.720 volts, which is what the Bank 2, Sensor 2 is delivering.
I'm not sure if I got the wrong replacement part, or a bad replacement part, or another issue that causes the system to read incorrect data from the O2 sensor.
The two photos are of the original O2 sensor, and a third of the universal, which has far more openings than the factory sensor. Any help is appreciated.
I reset the OBD, clearing the error code. The new sensor immediately tripped the check engine light, and the code is still Bank 1, Sensor 2. I was getting zero voltage on the old sensor, and with the new Denso, I now get a high voltage error, with 1.250 volts (read from live data stream on my computer). I believe I should be getting near 0.720 volts, which is what the Bank 2, Sensor 2 is delivering.
I'm not sure if I got the wrong replacement part, or a bad replacement part, or another issue that causes the system to read incorrect data from the O2 sensor.
The two photos are of the original O2 sensor, and a third of the universal, which has far more openings than the factory sensor. Any help is appreciated.
#6
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iTrader: (1)
I had a zero voltage reading on my Bank 1, Sensor 2 from the OBD computer. This is for a 2004 Lexus ES330. I pulled the original sensor out, and the item number (from the factory unit), is Toyota 89465-33370. The universal Denso replacement number I used is 234-4209.
I reset the OBD, clearing the error code. The new sensor immediately tripped the check engine light, and the code is still Bank 1, Sensor 2. I was getting zero voltage on the old sensor, and with the new Denso, I now get a high voltage error, with 1.250 volts (read from live data stream on my computer). I believe I should be getting near 0.720 volts, which is what the Bank 2, Sensor 2 is delivering.
I'm not sure if I got the wrong replacement part, or a bad replacement part, or another issue that causes the system to read incorrect data from the O2 sensor.
The two photos are of the original O2 sensor, and a third of the universal, which has far more openings than the factory sensor. Any help is appreciated.
I reset the OBD, clearing the error code. The new sensor immediately tripped the check engine light, and the code is still Bank 1, Sensor 2. I was getting zero voltage on the old sensor, and with the new Denso, I now get a high voltage error, with 1.250 volts (read from live data stream on my computer). I believe I should be getting near 0.720 volts, which is what the Bank 2, Sensor 2 is delivering.
I'm not sure if I got the wrong replacement part, or a bad replacement part, or another issue that causes the system to read incorrect data from the O2 sensor.
The two photos are of the original O2 sensor, and a third of the universal, which has far more openings than the factory sensor. Any help is appreciated.
#7
Rookie
Thread Starter
Finally got it- O2 sensor Lexus ES330
I returned the universal Denso sensor to Amazon and replaced with the Denso direct fit part. Took about 9 minutes plus clean up to swap the sensor. The OBD monitor displayed a nice 0.72-0.85v from live data. Been a week and MIL light is still off!
Cost me $56 and a few hours dicking with, and returning, the wrong part. Lesson learned.
Enjoy your day!
Marty
Cost me $56 and a few hours dicking with, and returning, the wrong part. Lesson learned.
Enjoy your day!
Marty
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#8
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Here are the Bosch Part Numbers for the ES300 2002
Bank 1 = Left
Bank 2 = Right
Sensor 1 = Upstream
Sensor 2 = Downstream
ES300 200 Lexus Bosch Part Numbers for Oxygen Sensors
Bank 2 = Right
Sensor 1 = Upstream
Sensor 2 = Downstream
ES300 200 Lexus Bosch Part Numbers for Oxygen Sensors
#9
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I returned the universal Denso sensor to Amazon and replaced with the Denso direct fit part. Took about 9 minutes plus clean up to swap the sensor. The OBD monitor displayed a nice 0.72-0.85v from live data. Been a week and MIL light is still off!
Cost me $56 and a few hours dicking with, and returning, the wrong part. Lesson learned.
Enjoy your day!
Marty
Cost me $56 and a few hours dicking with, and returning, the wrong part. Lesson learned.
Enjoy your day!
Marty
I hope you don't mind me jumping in here... DId you get your P0136 code resolved?
It looks like I have a similar problem in that the Denso O2 sensor I've received doesn't look like the toyota sensor on the car!
The new sensor has lots of holes and the original only seems to have 1... The Denso part number is:
234-4064
Which is OE according to Amazon and the Denso website... so hopefully the cosmetic difference isn't a problem!?Thanks!
Rich
#10
I returned the universal Denso sensor to Amazon and replaced with the Denso direct fit part. Took about 9 minutes plus clean up to swap the sensor. The OBD monitor displayed a nice 0.72-0.85v from live data. Been a week and MIL light is still off!
Cost me $56 and a few hours dicking with, and returning, the wrong part. Lesson learned.
Enjoy your day!
Marty
Cost me $56 and a few hours dicking with, and returning, the wrong part. Lesson learned.
Enjoy your day!
Marty
#11
Pole Position
Hello,
What year do you have?
It appears that Denso 234-4261 is for Bank 2 on the Front of the engine, closer to the radiator. In those engines it's a little backwards, with Bank 1 being closer to the Firewall, so you likely need a Denso 234-4064 instead, here is a good place to get one. Not that big of a difference, just a different connector housing that can easily be replaced if needed, here is a thread on how to do it.
Hope this helps and best of luck!
What year do you have?
It appears that Denso 234-4261 is for Bank 2 on the Front of the engine, closer to the radiator. In those engines it's a little backwards, with Bank 1 being closer to the Firewall, so you likely need a Denso 234-4064 instead, here is a good place to get one. Not that big of a difference, just a different connector housing that can easily be replaced if needed, here is a thread on how to do it.
Hope this helps and best of luck!
#12
Hello,
What year do you have?
It appears that Denso 234-4261 is for Bank 2 on the Front of the engine, closer to the radiator. In those engines it's a little backwards, with Bank 1 being closer to the Firewall, so you likely need a Denso 234-4064 instead, here is a good place to get one. Not that big of a difference, just a different connector housing that can easily be replaced if needed, here is a thread on how to do it.
Hope this helps and best of luck!
What year do you have?
It appears that Denso 234-4261 is for Bank 2 on the Front of the engine, closer to the radiator. In those engines it's a little backwards, with Bank 1 being closer to the Firewall, so you likely need a Denso 234-4064 instead, here is a good place to get one. Not that big of a difference, just a different connector housing that can easily be replaced if needed, here is a thread on how to do it.
Hope this helps and best of luck!
I think I'm going to go with the front variation. Funny thing is, the situation fixed itself, just as fast as it showed up today it went away. My theory is something in the air pressure is causing the reaction, I live in New England. Something also worth noting is that a lot of people suggested may just be the air filter
#13
Pole Position
Sorry, not quite sure if I was clear enough..
As written earlier, that engine is backwards, with Bank 1 being closer to the Windshield, and Bank 2 is closer to the Radiator. In your case, it is Bank 1 sensor that you need, it is on the Back of the engine, so you need a Rear sensor linked above.
Again, the difference is just in connector used, and you can make the other sensor work, but it's easier to get a correct one.
Hope this helps and best of luck!
As written earlier, that engine is backwards, with Bank 1 being closer to the Windshield, and Bank 2 is closer to the Radiator. In your case, it is Bank 1 sensor that you need, it is on the Back of the engine, so you need a Rear sensor linked above.
Again, the difference is just in connector used, and you can make the other sensor work, but it's easier to get a correct one.
Hope this helps and best of luck!
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