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Most likely you have a inoperative oxygen exhaust senser .Depending on your car,you have two for sure,up stream and down stream .Usually one is located on the right exhaust comming down from the exhaust manifold and another past the catalistic converter. You might have another one located on the left exhaust comming down off the exhaust manifold.These are expensive to replace "BY GUESSING" which one. No way to tell which one it is,unless you are advanced auto home repair,and have a manual for your car ..(HAYNES, ADVANCED AUTO STORES) and understand how to do it the inexpensive way. I purchased a CODE READ OUT module, and for each car i have owned,i have purchased a HAYNES repair manual for it. HAve a friend that has some good knowledge to guide you along.Once you spend the money for the code read out,over time it will pay for its self by you NOT having to take your car into the shop to have it hooked up to a computer to find the trouble code.That alone is usually $75.00. The oxygen sensors can cost any where from 47.00 to 90.00.each. If i have burdened you with this info,settle back and relax,this is not a difficult task.The trouble code finder can cost you 130.00 for a excellent one that you can operate with no problem.Just follow instructions that come with the trouble code finder and look through your repair manual. You not only save money also you are learning about your car and many ways to keep it in excellent operating condition. Take your time and enjoy.
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Why does my Check engine light stay on in my 2001 Chevy Impala?
Check engine is an error. You have to go at a garage to see what is the error code, then correct the problem.
Why would a check engine light on a 2002 Chevy impala come on?
You need to connect a OBD-II Scanner to find out.....
How do you check for check engine light codes on 1984 Chevrolet Impala?
It requires a scanner to properly diagnosis a check engine light.
How do you reset the check engine light on a 94 Chevy Impala ss?
Either try disconnecting thebattery for about 10 mins. or have vehicle scanned to determine the problem
How do you reset check engine light for the 2009 Chevy trail blazer?
How do you reset check engine light for the 2009 Chevy trail blazer?
Why don't my temperature gauge only work some times on 2001 Chevy impala?
Replace your thermostat had same problem it sets a code but no check engine light
What might cause a 2001 Chevy Impala 3.8L check engine light to stay on?
Several things could cause the 2001 Impalas check engine light to stay on. Since so many things could be wrong, check the computer codes for any leads on possible problems.
Reset check engine light on 2003 Chevy 2500hd duramax?
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
How do you reset engine light on 96 Chevy Impala?
Use an OBD scan tool to reset or disconnect the battery
What does service engine soon light mean on a 2000 Chevy Impala?
It means that the engine computer has detected a malfunction that will affect the emissions of the vehicle.
1997 Chevy venture check engine light blinks?
If the check engine light is blinking that means an engine cylinder misfire has been detected
What happend when oxygen sensor go bad on 1996 impala?
The check engine light will illuminate.
