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O2 sensor mileage

uid 17648's pic
posted by  Shifted on  Fri Mar 16 10:44 CST 2007
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last visit: Sat Nov 19 19:05 CST 2011
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Replacing the 02 sensor or MAF sensor will only benefit your mileage if they are faulty; your first task should be to test these (per the FAQ's). If they are within spec then swapping them is a waste of money.

Better to check thoroughly for vacuum and intake leaks, and inspect your ignition system (plugs, wires, cap, rotor and distributor) and make sure your timing is set to spec. Also be sure your tires are inflated properly and wheel alignment is good.

It's easy to lose 3-5 mpg with a handful of little things not quite right; I'd look at those first before I started replacing expensive parts...

Shifted






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New O2 sensor mileage
posted by  EJO  on Fri Mar 16 07:43 CST 2007 >


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