What does P0161 code mean?

oxygen sensor’s heater circuit
Code P0161 occurs when the powertrain control module tests the downstream heated oxygen sensor’s heater circuit on Bank 2 and detects a short in the circuit or excessive resistance in the heater circuit.

What sensor is bank 1 sensor 1 upstream or downstream?

Bank 1 Sensor 1 means Upstream Right/Rear;Bank 2 Sensor 1 means Upstream Left/Front;Bank 1 Sensor 2 means Downstream Right/Rear;Bank 2 Sensor 2 means Downstream Left/Front.

Is bank 1 sensor 2 Left or right?

Bank 1 sensor 2 is located downstream, usually right behind the catalytic converter. Regardless of the bank, all oxygen sensors use the same naming pattern. One that is between the engine and the catalytic converter is upstream or sensor 1.

How do you fix P0158 code?

What repairs can fix the P0158 code?

  1. Replace the rear oxygen sensor.
  2. Repair any oxygen sensor wires that have shorted out, are broken or exposed.
  3. Make necessary repairs to remedy the excessive fuel pressure.
  4. Replace engine coolant temperature sensor if it is necessary.

Can you drive with a bad O2 sensor?

Can You Drive With A Bad Oxygen Sensor? Yes, you can drive with a bad oxygen sensor if you can still start your engine and feel little difficulty driving. But don’t leave it alone for over a couple of days, as it might cause safety problems and lead to the malfunction of other parts of your vehicle.

How do you fix engine code P0138?

What repairs can fix the P0138 code?

  1. Replacing the O2 sensor for bank 1 sensor 2.
  2. Repairing or replacing the wiring or connection to the O2 sensor for bank 1 sensor 2.
  3. Replacing the catalyst in front of the sensor.
  4. Repairing a leaking injector.

Can I use a downstream oxygen sensor for upstream?

A: Each vehicle is different in the amount of O2 sensors they have. A: The upstream sensor threads into the pipe coming from the engine, closer to the front of the car, and the downstream sensor threads into the catalytic converter, more toward the rear of the vehicle. They are not interchangeable.

How do I know if my upstream or downstream oxygen sensor is bad?

What are the symptoms of a bad downstream oxygen sensor?

  1. A Glowing Check Engine Light. The bright orange Check Engine light in your dashboard will usually glow if you have a bad oxygen sensor.
  2. Bad Gas Mileage.
  3. An Engine That Sounds Rough.
  4. An Emissions Test Failure.
  5. An Older Vehicle.

Which 02 sensor is bank 1 sensor 2?

“Bank 1, Sensor 2” is the rear oxygen sensor. A V6 or V8 engine has two banks (or two parts of that “V”).

What are the symptoms of a bad 02 sensor?

Here are some of the most common signs that your oxygen sensor is bad.

  • A Glowing Check Engine Light. The bright orange Check Engine light in your dashboard will usually glow if you have a bad oxygen sensor.
  • Bad Gas Mileage.
  • An Engine That Sounds Rough.
  • An Emissions Test Failure.
  • An Older Vehicle.