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Hello, Hmar! If you're dealing with a P0155 code on your V6 Tucson, it refers to the "O2 Sensor Heater Circuit Bank 2 Sensor 1." Bank 1 is on the passenger side, and Bank 2 is on the driver's side. If you're standing in front of the car looking at the engine, Bank 2 would be closer to you on the left. Sensor 1 is the upstream oxygen sensor, located before the catalytic converter on the Bank 2 side. So, in this case, the sensor you're looking for is on the driver's side, mounted on or near the exhaust manifold before the catalytic converter. You might need to inspect the wiring and connections or replace the sensor if the heater circuit has failed. Make sure the engine is cool before working on the sensor to avoid burns.
Hello, Hmar! If you're dealing with a P0155 code on your V6 Tucson, it refers to the "O2 Sensor Heater Circuit Bank 2 Sensor 1." Bank 1 is on the passenger side, and Bank 2 is on the driver's side. If you're standing in front of the car looking at the engine, Bank 2 would be closer to you on the left. Sensor 1 is the upstream oxygen sensor, located before the catalytic converter on the Bank 2 side. So, in this case, the sensor you're looking for is on the driver's side, mounted on or near the exhaust manifold before the catalytic converter. You might need to inspect the wiring and connections or replace the sensor if the heater circuit has failed. Make sure the engine is cool before working on the sensor to avoid burns.
thanks for the reply. I get a little confused here. So my steering wheel is on the left (US). So if i stand in front of the car, driver side is my right, Left is passanger. So if Bank2 is driver side, should it not be on the right standing in front of the car or its still on my left passenger side?
thanks for the reply. I get a little confused here. So my steering wheel is on the left (US). So if i stand in front of the car, driver side is my right, Left is passanger. So if Bank2 is driver side, should it not be on the right standing in front of the car or its still on my left passenger side?
Got it, let's clarify this. In your car with the steering wheel on the left, Bank 1 is typically on the passenger side, and Bank 2 is on the driver's side. When you stand in front of the car looking at the engine, the driver's side will be on your right, and the passenger side will be on your left. The P0155 code is referring to the oxygen sensor heater circuit for Bank 2 Sensor 1, which means you need to check the upstream oxygen sensor on the driver's side, which would be on your right as you stand in front of the car.
No thats ok, it was me not mentioning the exact type of vehicle. I have one more question see the greas/oil on the uploaded picture. Is that something that can be done without going to mechanic or have to take it to mechanic to replace the pipe or hose or the nut or seal? Any suggestions
No thats ok, it was me not mentioning the exact type of vehicle. I have one more question see the greas/oil on the uploaded picture. Is that something that can be done without going to mechanic or have to take it to mechanic to replace the pipe or hose or the nut or seal? Any suggestions
This could be a minor oil or grease leak due to a loose connection, a worn-out seal, or a damaged hose. First, try tightening all connections and inspecting the hose for any cracks or wear. Clean the area around the leak to determine if it continues. If the leak is minor and you're confident in your abilities, you might be able to replace the hose or seal yourself. However, if the issue persists or you're unsure about the cause, it's best to consult a mechanic.
Not sure if this is helpful, but when i had a similar issue, it turned out to be a cracked hose. Might be worth giving everything a good once-over if you decide to DIY it.
Locate Bank and Sensor
