Q: PO153 02 circut low response bank2 sensor 1 What does this mean?

asked by on

PO153, 02 circut low respond Bank 2 sensor 1 What does this mean

My car has 180 miles.
My car has an automatic transmission.

Your car has Oxygen sensors in the exhaust system to give the computer information on the fuel mixture. The Oxygen sensor produces a small voltage when it heats up and if there is oxygen present in the exhaust, as in a lean fuel mixture, the voltage drops sharply. The engine controller is constantly making small adjustments to the fuel mixture to keep the sensor voltage sweeping back and forth, usually about three times a second. If the oxygen sensor does not respond quickly enough to mixture adjustments, the controller will shift to a fixed mixture and store a code P0153 for the right bank sensor or a P014C for the left bank sensor. It could be a result of damage to the wiring, of an exhaust leak admitting excess air to the exhaust, or of a tired sensor. At 180 thousand miles it would not be unheard of for any of these things to be true. If you want to get this checked out at your convenience, you can contact YourMechanic. They will send a technician to your home or office to look at your Expedition and let you know what should be done for it.

Was this answer helpful?

Hi There. Thanks for contacting us tonight. The P0153 trouble code is an indication that the oxygen sensor is not properly regulating the fuel and oxygen levels. The oxygen sensor voltage switches between high voltage (fuel) and low voltage (air) at a rapid rate of speed. You might want to read this article to review the possible sources and solutions.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. PO153 02 circut low response bank2 sensor 1 What does this mean?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My check engine light turned on and it also notified me that the traction control turned off

I do not recommend driving the vehicle until the car is diagnosed as to why the lights came on. The issue may constitute your vehicle to be unsafe to drive and should only be driven only to get to a...

Q: Fuel pump was replaced but it is still not working.

Hello. If the fuel pump is not coming on, and the fuse and relay are good, then it may be possible that there is a problem with the pump or the fuel pump circuit. The first thing I would do...

Q: 98 ford expedition 5.4l is getting no fuel and I replaces the fuel pump what's going on?

Hi there. In some cases, after installing a new fuel pump a few things can go wrong. One of the most common issues is that a fuel pump relay will be faulty or an electrical ground wire to the pump...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...