Rough Idling and Oxygen Sesor problems
July 13th, 2007, 7:44 PM
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Rough Idling and Oxygen Sesor problems
I own a 2000 Impala with a little over 160,000 miles on it. It has been a great car. Recently it began to shake while in idle and the engine light went on. I took it to advanced auto parts and got the free test. They said it was my oxygen sensor. My car has two sensors but I only bought one to save money. I put in the new Oxygen sensor and then I also replaced the spark plugs. The light went off but the car still idles rough. I put in some fuel injector cleaner today but i was just wondering if anyone has any other ideas for me to research besides buying the other oxygen sensor.
July 23rd, 2007, 7:40 AM
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RE: Rough Idling and Oxygen Sesor problems
Try pulling the vacuum line off of your EGR valve and test drive it.
If that did it then it is probably your EGR control valve which takes commands from your computer.
If that did it then it is probably your EGR control valve which takes commands from your computer.
July 24th, 2007, 5:44 AM
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RE: Rough Idling and Oxygen Sesor problems
ORIGINAL: wheels
I own a 2000 Impala with a little over 160,000 miles on it. It has been a great car. Recently it began to shake while in idle and the engine light went on. I took it to advanced auto parts and got the free test. They said it was my oxygen sensor. My car has two sensors but I only bought one to save money. I put in the new Oxygen sensor and then I also replaced the spark plugs. The light went off but the car still idles rough. I put in some fuel injector cleaner today but i was just wondering if anyone has any other ideas for me to research besides buying the other oxygen sensor.
I own a 2000 Impala with a little over 160,000 miles on it. It has been a great car. Recently it began to shake while in idle and the engine light went on. I took it to advanced auto parts and got the free test. They said it was my oxygen sensor. My car has two sensors but I only bought one to save money. I put in the new Oxygen sensor and then I also replaced the spark plugs. The light went off but the car still idles rough. I put in some fuel injector cleaner today but i was just wondering if anyone has any other ideas for me to research besides buying the other oxygen sensor.
August 6th, 2007, 12:06 PM
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RE: Rough Idling and Oxygen Sesor problems
I own a 2000 with the 3.8l and around 100k, the engine light came on and I also had the rough idles and it would sputter while driving. I had the code pulled and it was the Mass Air Flow sensor. I replaced the sensor and had the computer reset, but the light is still on, but the problems went away. I am not getting the best fuel milage, but it drives smooth. The error code is still saying that the Mass Air Flow sensor has "Low Input Voltage". Would another senor upstream or downstream of this sensor cause this same error message?
October 28th, 2007, 7:35 PM
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RE: Rough Idling and Oxygen Sesor problems
i have an 02 LS. when my O2 sensor went, the engine just died when driving. no sputtering, nothing. i used an ODB2 scanner and it said it was the O2 sensor. I was thinking it was the battery since it was about 5 y/o and it was only a 5 year battery.
I replaced the O2 sensor and it fixed it. BTW, the sensor was about 140.00 w/core charge. with the core charge, i guess they go bad. the O2 sensor i replaced was on the intake, not the MAS on the hose. the sensors about the size of a pack of cigaretts. ALso, you will need some Torx drivers to remove the sensor.
I replaced the O2 sensor and it fixed it. BTW, the sensor was about 140.00 w/core charge. with the core charge, i guess they go bad. the O2 sensor i replaced was on the intake, not the MAS on the hose. the sensors about the size of a pack of cigaretts. ALso, you will need some Torx drivers to remove the sensor.
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