How to Solve Oxygen Sensor Failure?
1 Answers
Oxygen sensor failure solutions are as follows: 1. Replace the oxygen sensor at an authorized 4S shop. Some car owners may opt for cheaper roadside repairs, but after replacement, be sure to use a diagnostic tool to check again when the engine is warm (oxygen sensors operate at high temperatures). A fluctuating signal output indicates a genuine part. 2. Since the oxygen sensor may not function when the vehicle is not operating, even if a counterfeit is installed, it won't be detectable on the dashboard. Therefore, it's advisable to choose authorized manufacturer shops for repairs and replacements. Symptoms of a faulty oxygen sensor are as follows: 1. Oxygen sensor failure can cause unstable idling and excessive fuel consumption. A damaged oxygen sensor significantly reduces engine power, causes sluggish acceleration, and results in black smoke from the exhaust pipe. 2. Oxygen sensor failure typically triggers the engine warning light, causes unstable idling, produces a sputtering sound from the exhaust, emits a pungent odor, and increases fuel consumption. You can use a diagnostic tool to check the voltage, which usually fluctuates between 0.1-1 volts, changing more than 8 times in 10 seconds. If the voltage fluctuates between 0.1-0.5 volts, it indicates a lean fuel mixture. If it fluctuates between 0.5-1 volts, it indicates a rich fuel mixture. If it remains steady between 0.4-0.5 volts, it means the oxygen sensor is damaged.
