H02 Sensor (Bank 1 Sensor 2) P0136 Code???
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Hello,
I have this same problem. Check Engine light went on and the code was P0136... The mechanic said it was the downstream oxygen sensor. This is covered under the Emission Warranty is it? I called the dealer and they said no. The quoted it at $400-$500. what a rip off. How do I go about replacing it? Anywhere i can purchase it and install it myself? Is it easy to install? ANyone has changed this before? Also regarding spark plugs and differential fluid. I have 33,000 miles on my 04 V6. Do i need to change the spark plugs and differential at this time? So far I haven't done any maintenance on my truck... Are the spark plugs on my truck copper? which lasts about 30K? Any feedback would be greatly appreciated. thanks!
I have this same problem. Check Engine light went on and the code was P0136... The mechanic said it was the downstream oxygen sensor. This is covered under the Emission Warranty is it? I called the dealer and they said no. The quoted it at $400-$500. what a rip off. How do I go about replacing it? Anywhere i can purchase it and install it myself? Is it easy to install? ANyone has changed this before? Also regarding spark plugs and differential fluid. I have 33,000 miles on my 04 V6. Do i need to change the spark plugs and differential at this time? So far I haven't done any maintenance on my truck... Are the spark plugs on my truck copper? which lasts about 30K? Any feedback would be greatly appreciated. thanks!
owen4runner
New member
I'm in my 2nd week of the dreaded P0136 code. I've read almost all the threads in this site that contain the words "O2 Sensors" I even found TSB EG005-05 that applies to '03-'04 (1GR-FE) that says "The design of the Oxygen Sensor has been modified to prevent these (P0136/P0156) conditions". 5 yrs and 45K miles this code desided to pop. Anyways, diagnostic reveals Bank 1 Sensor 2 has 0.000 volts (Bank 2 Sensor 2 has 0.556 volts). Armed with the pdf files (manual) I checked the resistance (ohms) values on the terminals and I get the same readings on both the sensors, about 9.6 ohms (manual spec is 11-16 ohms @68 deg)
After reading the TSB EG034-07 (Engine Bank 1 and Bank 2 A/F and O2 Identification) it state that Bank 1 refers to the bank that includes cylinder #1. Is the number 1 cylinder in a 1GR-FE (V6) located in the right of the engine (when viewed seating in the car, or for you sailors Starboard)?
I had a qoute for a Denso OE for $133 or a Denso Universal for $55. I was told by the sales rep that the difference between the two is that I have to splice the Universal.
After reading the TSB EG034-07 (Engine Bank 1 and Bank 2 A/F and O2 Identification) it state that Bank 1 refers to the bank that includes cylinder #1. Is the number 1 cylinder in a 1GR-FE (V6) located in the right of the engine (when viewed seating in the car, or for you sailors Starboard)?
I had a qoute for a Denso OE for $133 or a Denso Universal for $55. I was told by the sales rep that the difference between the two is that I have to splice the Universal.
owen4runner
New member
"Did you take it to the mechanic and changed it? Was it the downstream sensor Bank 1 Sensor 2? Bank 1 Sensor 2 is driver's side and after converter. I am searching to see which part i should get. Any suggestions?"
I have my own diagnostic tool. I read somewhere here that the Bank 1 is in the passenger side. If Bank 1 is where Cylinder #1 is (as per TSB EG034-07, a would assume that it will be on the passenger side (unless the 1GR-FE is among the odd balls that have the # 1 cylinder in the driver side). I will replace the sensor/s myself, still debating if I should get the (Denso) OE or universal. I actually removed the passenger side sensor yesterday to clean/inspect/test. Took less than 10 minutes to remove without ever lifting the truck.
I have my own diagnostic tool. I read somewhere here that the Bank 1 is in the passenger side. If Bank 1 is where Cylinder #1 is (as per TSB EG034-07, a would assume that it will be on the passenger side (unless the 1GR-FE is among the odd balls that have the # 1 cylinder in the driver side). I will replace the sensor/s myself, still debating if I should get the (Denso) OE or universal. I actually removed the passenger side sensor yesterday to clean/inspect/test. Took less than 10 minutes to remove without ever lifting the truck.
Hey,
Can you take pics of where the sensor is under the truck so i have an idea where to look without lifting the truck? So you sure Bank 1 is at the passenger side? My code is same as your Bank 1 Sensor 2. I been looking at Bosch #13355. it is like $87 at rockauto.com. Universal is kinda tricky because you have splice the wires and connection might be bad, but it's much cheaper than OE fit.. so i don't know how much of a difference is it.
I attached a pdf and it looks like you're right? not sure. Hope this help. I want to change the O2 asap. I just don't know if there is a need to get the Denso OE for $130 or just get the Bosch #13355 for like $87. what you think?
Can you take pics of where the sensor is under the truck so i have an idea where to look without lifting the truck? So you sure Bank 1 is at the passenger side? My code is same as your Bank 1 Sensor 2. I been looking at Bosch #13355. it is like $87 at rockauto.com. Universal is kinda tricky because you have splice the wires and connection might be bad, but it's much cheaper than OE fit.. so i don't know how much of a difference is it.
I attached a pdf and it looks like you're right? not sure. Hope this help. I want to change the O2 asap. I just don't know if there is a need to get the Denso OE for $130 or just get the Bosch #13355 for like $87. what you think?
owen4runner
New member
Thanks for the attachment. It confirmed my assumption that Bank 1 is in the passenger side. Attached is the locations of the different Emissions Control for the V6 (1GR-FE).
And below is the culprit of my problem, the Heated O2 sensor Bank 1 Sensor 2. Lay down under the truck directly below the passenger (front) side. Locate the exhaust pipe. Directly across from where the mud guard would be is the O2 sensor, threaded to the top of the pipe. If you draw an imaginary straight line to the driver side,you will also see the other sensor (Bank 2 Sensor 2). It will have 4 wires.
And below is the culprit of my problem, the Heated O2 sensor Bank 1 Sensor 2. Lay down under the truck directly below the passenger (front) side. Locate the exhaust pipe. Directly across from where the mud guard would be is the O2 sensor, threaded to the top of the pipe. If you draw an imaginary straight line to the driver side,you will also see the other sensor (Bank 2 Sensor 2). It will have 4 wires.
Attachments
owen4runner
New member
owen4runner
New member
I replaced my plugs with the OE (Denso) from the stealer 2 years ago around 25K miles. As far as the P0136 code, I reset it two days ago and has not come back since. If it does, I will replace it with the OE type.
owen4runner
New member
I haven't replaced it yet. If the code returns, I will replace it with the Denso OE Part# 234-4805 for $133 from Parts Plus. Here's the site: http://www.densoaftermarket.com/catalog/catalog.php?part=o2sn
What did you do to make the code go away? I thought you needed to change the O2 sensor. IF you turned off using the diagnostic tool, it will come back soon. I found a cheaper website http://www.rockauto.com/catalog/raframecatalog.php. The cost $106.79. Is there a reason you would wanna use Denso and not Bosch? The Bosch #13355 one is $87.
boston_kevin
New member
Good to know... I'm in the process of replacing my 3rd O2 sensor on my truck in 5 years. Toyota did the first two, I will be doing this one. $400 for the sensor plus $95 for the code diagnosis... So much for low ownership costs!
I got the OE oxygen sensor. Brand was Standard Part SG38 for $86. I tried replacing the sensor yesterday and it seemed impossible to loosen the sensor from under the truck. DO I have to lift it up the truck to get a better handle of it? I wanted to replace it myself and save money. Anyone had trouble loosening the old O2 sensor?
owen4runner
New member
Spray a little WD-40 and let it sit for several minutes.
