99 subaru outback mpg




99 subaru outback mpg

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    I have a 99 Outback with miles. I just ran through my second tank of gas on this new used car, and I'm getting AWFUL gas mileage.

    The table below shows all Subaru Outback specs by style, including MPG ( fuel economy), transmission details, and interior and exterior dimensions.

    99 subaru outback mpg

    99 subaru outback mpg

    The weight is over lbs. Markw answered about a year ago. I think it's a great gas milage even with AWD. Daniel answered 9 years ago. Start with a good tuneup and the O2 sensors.

    99 subaru outback mpg

    99 subaru outback mpg

    99 subaru outback mpg

    99 subaru outback mpg

    99 subaru outback mpg

    Gas Mileage of Vehicles by Subaru

    I suggest you replace all spark plugs and the wires. Also, replace the EGR valve. I would also run a can of Chevron Techron injector cleaner through the gas tank. Did cleaning the 02 sensor remove the CEL code? The misfire over an extended period of time may have damaged the 02 sensor.

    Put the cat back, as that is rarely an issue, and will usually result in rattles and a loss of power. You can not clean O2 sensors, you replace them.

    99 subaru outback mpg

    They are not meant to last forever. The front one is OE the rear can be generic. In the future do only ONE thing at a time as it makes it tough to diagnose. The front one does all the fuel manegment the other checks the cat. Do not do a laundry list of items like listed above, that is just throwing money away. Start with a good tuneup and the O2 sensors. Use OE wires and OE recomended plugs. Those must be some spark plugs if getting them used warrants the use of an exclamation point!!!

    How much are they new? Haha , no the plugs were new, was just saying the brand i used was ngk. Starts fine, that is when i found the mis fire though, and replaced the wires. Do another highway run pure highway and a purely mathmatical MPG figure.

    99 subaru outback mpg

    Try to stay around over 70 the MPG really takes a dump and let us know what you come back with. At 18mpg on the highway, you should be getting like 10 around town.

    You would be seeing CEL lights and smelling rotten eggs or unburnt fuel etc. I have been averginge 17 mpg. Then i am going with the Engine Temp sensor, though i really really do no believe in cleaning O2 sensors, I think that is the issue, but a CTS is much cheaper.

    Since I do not have the car in my driveway I cant tell. NO I change my mind, lets replace the front O2 sensor. They wont always throw a code if they are getting sluggish. I replaced the engine temp sensor 3 months ago can't remember the exact reason. I did replace coil pack this week, due to a misfire on every cylinder. Runs somewhat better, but not as it should be. Do you think replacing the front O2 sensor will make a huge difference with out the cat being in there even though removing the cat was a suggestion from a friend I do not believe that was a good choice, these cars need the cat to run right don't they?

    99 subaru outback mpg

    I have thrown a scanner on it keep it in the car but I am not sure what menu to go into to see if it is in the closed loop. I'd do a New O2 sensor before anything else You have already done everything else I'd do. You can see the sensor voltage and fuel trim ratios with your scanner depending on the type you have. I guess we don't need to worry about this any more.

    I traded it in on a automatic impreza. You need to be a member in order to leave a comment. Sign up for a new account in our community. Already have an account? Posted January 19, Share this post Link to post Share on other sites.

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