Can You Still Drive with a Faulty Upstream Oxygen Sensor?

1 Answers
Lyla
07/29/25 11:25pm
You should not continue driving with a faulty upstream oxygen sensor. The oxygen sensor in a car is a critical sensing component in the electronic fuel injection engine control system. It plays a key role in controlling vehicle exhaust emissions, reducing environmental pollution, and improving the fuel combustion quality of the car engine. Once the oxygen sensor fails, the electronic fuel injection system's computer cannot obtain information about the oxygen concentration in the exhaust pipe, thus preventing feedback control of the air-fuel ratio. Here is some relevant information about the car oxygen sensor: 1. Introduction: The car oxygen sensor is a crucial feedback sensor in the electronic fuel injection engine control system. It is essential for controlling vehicle exhaust emissions, reducing environmental pollution, and improving the fuel combustion quality of the car engine. Oxygen sensors are installed on the engine's exhaust pipe. 2. Working Principle: Under certain conditions (high temperature and platinum catalysis), it utilizes the oxygen concentration difference between the inside and outside of the zirconia element to generate a potential difference. The greater the concentration difference, the larger the potential difference.
Was this review help?
13
2
Share
More Forum Discussions

How to Pay Vehicle Purchase Tax for Company-Owned Vehicles?

The processing path is tax handling, vehicle purchase tax, vehicle purchase tax declaration. Select "vehicle registration location", enter invoice information, and check the invoice after confirming it is correct. The tax amount, invoice, taxpayer, and vehicle information will be automatically displayed, then save the declaration form. Click to download and print the declaration form to generate the "Vehicle Purchase Tax Declaration Form". Click to generate payment code to proceed and generate the tax payment certificate.
15
3
Share

How to Open the Trunk of a Buick Excelle When the Battery is Dead?

The trunk switch can be operated by pressing the trunk button on the remote key twice to open it, or by pressing the button on the driver's side door trim to open the trunk. In models where the rear seats are fixed and cannot be folded, there is an emergency trunk release handle located under the central cover behind the rear seats. Open the cover and pull the rope handle inside to release the trunk.
10
0
Share

How to Disable the Anti-Theft Lock on a Buick Vehicle When It Won't Start?

Use the original key to turn on the ignition switch and keep the key in the ignition position for 0.5 to 1.0 hours; the engine may start. The anti-theft password of the engine control unit matches the password of the anti-theft control module chip. For Volkswagen vehicles, after replacing a damaged ignition switch, try starting with the new key.
6
4
Share

How to solve the Geely ESC system malfunction?

When the ESC warning light comes on during driving, first pull over to the side of the road and then turn off the engine. Locate the pedal brake switch and check if it's loose. If it is, secure it properly, then restart the vehicle. This should clear the ESC warning light.
1
1
Share

How to Get into the Back Seat of a Two-Door Car?

There are handles on the back of both front seats that allow you to pull the seats forward. After getting in, you can pull the handle to adjust the front seats back to their original position. After getting into the back seat, press the button to restore the original seat position and settings automatically.
1
3
Share

How to Repair a Single-Cylinder Diesel Engine with No Compression?

Regularly clean the air filter. Frequently check and replenish water in a timely manner. In environments with poor working conditions, frequently wipe the machine to keep the body clean. If the oil level is found to be below the lower mark on the dipstick, promptly add engine oil and replace it according to the specified time. When black smoke is observed from the diesel engine's exhaust pipe, difficulty in starting, or reduced power, the air filter should be cleaned.
9
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.