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Front Oxygen Sensor Part number?

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which o2 sensor should I try replacing if im getting low mpg, but no CEL? only getting about 15mpg recently on my stock wagon that has about 135k miles.


Always do what's easiest and cheapest first. Get some $8 MAF cleaner, and clean the MAF first, steps can be found here.


Then do Spark plugs, steps can be found here.


Lastly do the O2 sensor.

05 LGT 16G 14psi 290whp/30mpg (SOLD)

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