Oxygen sensor question
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Oxygen sensor question
Will a "weak" or old Oxygen Sensor impact gas mileage? Should they be changed on a regular routine basis? ('98 LS400--120,000 miles).
#2
Lexus Fanatic
Not sure particularly on the LS, but oxygen sensors on the ES tend to get lazy after 100,000-125,000 miles, thus lowering the gas mileage. They may or may not trigger the check engine light, but I'd say it's a key part of preventive maintenance to replace the O2 sensors after that kind of mileage.
#3
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Originally Posted by saustin
Will a "weak" or old Oxygen Sensor impact gas mileage? Should they be changed on a regular routine basis? ('98 LS400--120,000 miles).
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LX - 1st and 2nd Gen (1996-2007)
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12-21-10 02:38 PM