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Old 10-07-2002, 12:15 AM
royaiii royaiii is offline
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Join Date: Jan 2002
Posts: 352
O2 sensors tell the car whether or not to add or decrease amount of fuel. You should not be driving with this condition too long. It will destroy your cats, give you bad gas miealage as well as possibly ruining your motor. As the car ages, the O2 sensors lose their sensitivity. Once they trigger a CE light, that means there is a complete failure. ON my 99 s420 w/ 47k miles, there was no CE light on but still the O2 sensors and MAF made the car to run rich. Eventually I had to reaplace MAF, O2 sensors, 2 cats, and both mufflers. Once you get a new O2 sensor, the car really gets great gas miealage as well as great acceleration.
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