Quote:
Originally Posted by 03glgold
I figured I would post on an old thread having to do with the same thing...my mileage has been down recently and actually dropped after i changed fuel filter...i was wondering a couple things...one thing is if I had bad o2 sensors it should throw a code shouldn't it...another is after seeing some of the recent things with transmissions I have come to wonder if servicing my tranny would help out as it has 140,000 without service that I know of...I am also thinking that it seems off that on a flat stretch of road 70 is at about 2600 rpm...the car also has plugs and wires with less than 5000 miles on them...any ideas
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bad sensors = code
140k w/o service = drain and replace fluids. don't do a flush...flushes can be bad.
70mph @ 2600 rpm sounds about right. on my car (LD9) it's usually closer to 3000 rpm.