Why does my check engine light stay on after replacing o2 sensor?

Why does my check engine light stay on after replacing o2 sensor?

There could be a different problem with your car. The check engine light could be caused by more than one problem. Your oxygen sensor may have been replaced by the technician, but your spark plugs need to be replaced as well.

Do you need to reset abs light after changing sensor?

If the ABS wheel speed sensor was faulty, once the new hub/sensor is installed, and you drive the vehicle, the warning lights should go out. To determine what is going on, you can manually erase the trouble codes using an appropriate scan tool and if the warning lights stay off, then the problem is resolved.

How do you reset check engine light after changing sensor?

Turn the ignition to the “On” position but don’t crank the engine (it won’t start anyway). Wait five minutes and reinsert the fuse. The “Check Engine” light will blink, then shut off.

How do you reset the ABS light after replacing the sensor?

How to Reset an Anti-Lock Brake Light

1. Disconnect the positive cable from the car battery, and then hold down on the brake pedal to drain the car’s electrical system. This will reset the car’s central computer.
2. Change the ABS sensor if the light comes back on.

How many miles do you have to drive to reset oxygen sensor?

Here’s something you probably don’t know: after clearing the car’s computer you will need to drive for about 50 to 100 miles. As you drive your car the computer will monitor all the sensors and register the results.

Do I need to reset after changing O2 sensor?

The O2 sensor in your vehicle monitors the exhaust gases coming out of the engine. Once you’ve replaced your vehicle’s O2 sensor, you’ll need to reset the ECU so it can properly gather information from the new O2 sensor.

Will disconnecting battery reset ABS light?

Resetting Your ABS Dashboard Warning Light Step One: Disconnect the positive cable from your car battery. This will result in a reset of the car’s central computer. Plug the cable back in to restore power. If there’s no remaining problem with the system, this should reset the light.

How do you test an ABS sensor?

With an ABS sensor disconnected you can probe the terminals with a multimeter, eliminating the need to remove the sensor from the vehicle. Both passive (2-wire) and active (2 or 3-wire) ABS sensors can be tested for basic functionality with a multimeter. Research which type of sensor your vehicle has before proceeding.

What happens if you change your oxygen sensor?

So You Changed Your Oxygen Sensor And The Light Is Still On??? Maybe This Is The Problem !!! – YouTube If playback doesn’t begin shortly, try restarting your device.

What causes a low tire pressure sensor to go off?

These sensors also run on onboard batteries, which have a limited lifespan of about 5 to 7 years (up to 10 years in the best cases). Low battery power and age-related wear and tear can cause the TPMS sensor to malfunction and cause the low tire pressure light but tires are fine issue.

Why are ABS and engine light still on?

I was told I need to replace my whee. Hub and wheel speed sensor. Thats the reason why my service transmission, abs light , traction lihht, and park brake were on .I fixed the wheel hub and sensor. But the lights are still on. Do I have to reset those lights. My car has 85439 miles. My car has an automatic transmission.

Do you have to reset your warning lights?

But the lights are still on. Do I have to reset those lights. My car has 85439 miles. My car has an automatic transmission. If the ABS wheel speed sensor was faulty, once the new hub/sensor is installed, and you drive the vehicle, the warning lights should go out.