Where is the o2 sensor in 2004 Chevy Malibu Classic?

Question

I am just asking anyone that knows any mechanical knowledge. Does CHECK ENGINE light mean the o2 sensor or fuel filter is plugged up? The engine is running fine, but the light came on 3 days ago. So I just wanted to know where the o2 sensor is. What is the possibility that caused the CHECK ENGINE light to come on?

Answer 1

The o2 sensors are in the exhaust system. I doubt that is why the cel is coming on, that would be very rare. As far a possibilities:































OBD II Generic Check Engine Light Codes





Welcome to our listing page for Generic Check Engine Light Codes. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. Generic check engine light codes were set up so that there would be a more standardized system of defining trouble codes from all the vehicle manufacturers. Many of the code definitions may seem a bit strange, so don't be afraid to contact us with any questions regarding definitions.







We have also implemented a new area for posting some responses to our most common code questions, so be sure to visit these pages for some instant info on your check engine light code! These Generic OBDII Check Engine Light Codes are listed numerically and by classification for easy searching. We are adding diagnostic help daily, so look for codes that link to a help screen and check back frequently! If you need more specific help, and are having trouble with a code that is not listed, you can also use the "Get Help" link on the left hand navigation bar. Thanks, and please take a moment to read our Disclaimer before getting started!



I hope you find something useful from our site, and remember to refer a friend! Our goal is to provide you with the knowledge to know what is going on with your car when the check engine light comes on. This allows you not only to potentially diagnose a concern yourself, but also to make informed decisions when having your car serviced by a shop. With the potential costs associated with diagnosing and repairing generic check engine light codes, as well as manufacturer specific codes, knowledge is power! Thanks for stopping in, and for some great info on Oxygen Sensors, EGR Valves and Repair Costs, be sure to check out our Article Index!









DTC Codes - P0010-P0099 – Fuel and Air Metering and Auxiliary Emission Controls



P0010 "A" Camshaft Position Actuator Circuit (Bank 1)



P0011 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)



P0012 "A" Camshaft Position - Timing Over-Retarded (Bank 1)



P0013 "B" Camshaft Position - Actuator Circuit (Bank 1)



P0014 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) - See Trouble Code P0011



P0015 "B" Camshaft Position -Timing Over-Retarded (Bank 1) - See Trouble Code P0012



P0020 "A" Camshaft Position Actuator Circuit (Bank 2)



P0021 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)



P0022 "A" Camshaft Position - Timing Over-Retarded (Bank 2)



P0023 "B" Camshaft Position - Actuator Circuit (Bank 2) - See Trouble Code P0020



P0024 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) - See Trouble Code P0021



P0025 "B" Camshaft Position - Timing Over-Retarded (Bank 2) - See Trouble Code P0022



P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1)



P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1)



P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1)



P0033 Turbo Charger Bypass Valve Control Circuit



P0034 Turbo Charger Bypass Valve Control Circuit Low



P0035 Turbo Charger Bypass Valve Control Circuit High



P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)



P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2)



P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2)



P0040 Upstream Oxygen Sensors Swapped From Bank To Bank



P0041 Downstream Oxygen Sensors Swapped From Bank To Bank



P0042 HO2S Heater Control Circuit (Bank 1 Sensor 3)



P0043 HO2S Heater Control Circuit Low (Bank 1 Sensor 3)



P0044 HO2S Heater Control Circuit High (Bank 1 Sensor 3)



P0050 HO2S Heater Control Circuit (Bank 2 Sensor 1)



P0051 HO2S Heater Control Circuit Low (Bank 2 Sensor 1)



P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1)



P0053 HO2S Heater Resistance (Bank 1, Sensor 1)



P0054 HO2S Heater Resistance (Bank 1, Sensor 2)



P0055 HO2S Heater Resistance (Bank 1, Sensor 3)



P0056 HO2S Heater Control Circuit (Bank 2 Sensor 2)



P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2)



P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2)



P0059 HO2S Heater Resistance (Bank 2, Sensor 1)



P0060 HO2S Heater Resistance (Bank 2, Sensor 2)



P0061 HO2S Heater Resistance (Bank 2, Sensor 3)



P0062 HO2S Heater Control Circuit (Bank 2 Sensor 3)



P0063 HO2S Heater Control Circuit Low (Bank 2 Sensor 3)



P0064 HO2S Heater Control Circuit High (Bank 2 Sensor 3)



P0065 Air Assisted Injector Control Range/Performance



P0066 Air Assisted Injector Control Circuit or Circuit Low



P0067 Air Assisted Injector Control Circuit High



P0070 Ambient Air Temperature Sensor Circuit



P0071 Ambient Air Temperature Sensor Range/Perform































OBD II Generic Check Engine Light Codes





Welcome to our listing page for Generic Check Engine Light Codes. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. Generic check engine light codes were set up so that there would be a more standardized system of defining trouble codes from all the vehicle manufacturers. Many of the code definitions may seem a bit strange, so don't be afraid to contact us with any questions regarding definitions.







We have also implemented a new area for posting some responses to our most common code questions, so be sure to visit these pages for some instant info on your check engine light code! These Generic OBDII Check Engine Light Codes are listed numerically and by classification for easy searching. We are adding diagnostic help daily, so look for codes that link to a help screen and check back frequently! If you need more specific help, and are having trouble with a code that is not listed, you can also use the "Get Help" link on the left hand navigation bar. Thanks, and please take a moment to read our Disclaimer before getting started!



I hope you find something useful from our site, and remember to refer a friend! Our goal is to provide you with the knowledge to know what is going on with your car when the check engine light comes on. This allows you not only to potentially diagnose a concern yourself, but also to make informed decisions when having your car serviced by a shop. With the potential costs associated with diagnosing and repairing generic check engine light codes, as well as manufacturer specific codes, knowledge is power! Thanks for stopping in, and for some great info on Oxygen Sensors, EGR Valves and Repair Costs, be sure to check out our Article Index!









DTC Codes - P0010-P0099 – Fuel and Air Metering and Auxiliary Emission Controls



P0010 "A" Camshaft Position Actuator Circuit (Bank 1)



P0011 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)



P0012 "A" Camshaft Position - Timing Over-Retarded (Bank 1)



P0013 "B" Camshaft Position - Actuator Circuit (Bank 1)



P0014 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) - See Trouble Code P0011



P0015 "B" Camshaft Position -Timing Over-Retarded (Bank 1) - See Trouble Code P0012



P0020 "A" Camshaft Position Actuator Circuit (Bank 2)



P0021 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)



P0022 "A" Camshaft Position - Timing Over-Retarded (Bank 2)



P0023 "B" Camshaft Position - Actuator Circuit (Bank 2) - See Trouble Code P0020



P0024 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) - See Trouble Code P0021



P0025 "B" Camshaft Position - Timing Over-Retarded (Bank 2) - See Trouble Code P0022



P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1)



P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1)



P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1)



P0033 Turbo Charger Bypass Valve Control Circuit



P0034 Turbo Charger Bypass Valve Control Circuit Low



P0035 Turbo Charger Bypass Valve Control Circuit High



P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)



P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2)



P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2)



P0040 Upstream Oxygen Sensors Swapped From Bank To Bank



P0041 Downstream Oxygen Sensors Swapped From Bank To Bank



P0042 HO2S Heater Control Circuit (Bank 1 Sensor 3)



P0043 HO2S Heater Control Circuit Low (Bank 1 Sensor 3)



P0044 HO2S Heater Control Circuit High (Bank 1 Sensor 3)



P0050 HO2S Heater Control Circuit (Bank 2 Sensor 1)



P0051 HO2S Heater Control Circuit Low (Bank 2 Sensor 1)



P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1)



P0053 HO2S Heater Resistance (Bank 1, Sensor 1)



P0054 HO2S Heater Resistance (Bank 1, Sensor 2)



P0055 HO2S Heater Resistance (Bank 1, Sensor 3)



P0056 HO2S Heater Control Circuit (Bank 2 Sensor 2)



P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2)



P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2)



P0059 HO2S Heater Resistance (Bank 2, Sensor 1)



P0060 HO2S Heater Resistance (Bank 2, Sensor 2)



P0061 HO2S Heater Resistance (Bank 2, Sensor 3)



P0062 HO2S Heater Control Circuit (Bank 2 Sensor 3)



P0063 HO2S Heater Control Circuit Low (Bank 2 Sensor 3)



P0064 HO2S Heater Control Circuit High (Bank 2 Sensor 3)



P0065 Air Assisted Injector Control Range/Performance



P0066 Air Assisted Injector Control Circuit or Circuit Low



P0067 Air

Answer 2

i actually know exactly what the problem is, though im not sure if they have been able to completely fix it. the problem is in the ECU, the computer for your car, sometimes it forgets the key is on, and shuts the car down, my girlfriend's car does this sometimes, and its a 2002? it had to do with a programming bug, but it wasnt major enough to have a recall. it affected only a small percentage. ask them to replace the ECU, which is around... 150 to 300 bucks. better than the injectors like the other guy said, they run around 200 each. you need 6. the computer wont read a code because the engine light doesnt come on. try the ECU and it should fix your problem.

Answer 3

The o2 sensor is somewhere in the exhaust system.

Answer 4

Go to an autozone and have them test it to see a few vague possibilities, or pay the money and have a shop diagnose the problem.