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Why would the check engine light still be on after replacing the o2 sensor on a 2000 impala?
Wiki User
∙ 14y ago
What are the codes
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
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∙ 14y ago
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What happend when oxygen sensor go bad on 1996 impala?
The check engine light will illuminate.
How do you fix an oxygen sensor?
Unfortunately there is no fixing an O2 sensor. If the "check engine" light is on due to an O2 sensor, it can only be remedied by replacing the bad sensor.
What do you do if the check engine light comes back on after replacing the speed sensor?
I had all sensors replaced in my 03 Trailblazer and the check engine light stiil comes on. Why?
Why wont 2001 Chevy Impala start after replacing the thermostat?
If a 2001 Chevy Impala will not start after replacing a thermostat, perhaps it is possible that a sensor was bumped unknowingly. Check all of the sensors that might have been touched during the changing of the thermostat to see that they are all still plugged in.
Why would your check engine light come on after replacing the water pump on my 96' Chevy Lumina?
Replacing the water pump will not cause the check engine light to come on. Either it is a coincidence or you have accidentally disconnected a wire or damaged a sensor somehow.
Why replace the fuel tank pressure sensor?
If it is bad, replacing it will help with the vehicles emissions and put out the check engine light.
Why would check engine light still be on after replacing 02 sensor on 2000 grand prix gtp?
There is another cause for the code.
If engine is damaged will check engine come on?
Check engine light will come on for various reasons. The o2 sensors could be one of them. If your belt breaks the light will come on and the engine will over heat. I mentioned the o2 sensor because when it comes on for this reason some people have had that light on for years without replacing the sensor.
Would replacing the throttle position sensor make your tranmission not change on a 2004 Kia Sedona?
You should have a check engine light illuminated. If so check the codes.
How do you reset the check engine light on 03 Chevy Suburban after replacing the oxygen sensor?
disconnect the negative battery cable for 30 seconds
How often does an oxygen sensor need to be changed?
Your O2 sensor is a "part that is designed to wear out". there is no standard on replacing them, but if your car is running fine, and your check engine light comes on, and stays on, it's probably an O2 sensor.
How reset check engine light 2001 Accord in computer after replacing ox sensor?
THE CHEAP WAY.... DISCONNECT THE BATTERY FOR A MINUTE OR SO. JOSE
