Can a bad O2 sensor be something else?
Can a bad O2 sensor be something else?
Mechanic ran diagnostic again and said it still is showing bad o2 sensor but since he replaced it the problem must be a catalytic converter that is plugging up and should be replaced. Since replacing a converter is costly I want to make sure this is the problem. My question; could this be something else or does the converter need to be replaced?
When was the last time the O2 sensor was updated?
This topic contains 4 replies, has 2 voices, and was last updated by philip lodato 4 years, 8 months ago.
What should the voltage be on the O2 sensor?
To perform the actual test, start the car again and check the voltmeter’s voltage readings. The o2 sensor’s voltage should fluctuate within the 100mV – 900mV (0.10V to 0.90V) range. If it is within this range, the o2 sensor is operating normally and you can stop testing.
Why does my oxygen sensor keep coming on?
This light can come on for many different reasons, so it is important to have it looked at by a professional who can correctly diagnose the exact cause. If you have high a mileage vehicle, there’s a good chance it has a bad oxygen sensor in need of replacement.
Can a faulty oxygen sensor cause a smog failure?
Needless to say oxygen sensors require periodic replacement. Failure to do so will more then likely cause a smog check failure. 4 out of 10 high CO failed smog checks will be due to a defective, damaged or lazy oxygen sensor.
What are test only SMOG stations ( O2 sensor )?
Ask-A-Tech! What are Test Only Smog Stations? The Oxygen Sensor, also known as the O2 Sensor is the component responsible for delivering exhaust information to a vehicle’s emissions computer. Most late model vehicles will be equipped with both a pre-CAT oxygen sensor and a post-CAT oxygen sensor.
What happens when the O2 sensor goes off?
The sensors are connected to the exhaust pipe in the engine, and when the oxygen/o2 sensors fail, the fuel efficiency can drop drastically. This happens due to gas loss. This will further cause the vehicle to have too much air and run ‘lean.’
What can cause a smog check to fail?
Needless to say oxygen sensors require periodic replacement. Failure to do so will more then likely cause a smog check failure. 4 out of 10 high CO failed smog checks will be due to a defective, damaged or lazy oxygen sensor. It is probably one of the most underrated emissions components and should be payed much closer attention.
