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fellowtravler
fellow ... 8/24/2010
2006 Pontiac Vibe Base 4Cyl1.8L - Engine
air filter cleaning or replacement?
i have a p0171 error code reading. while cleaning the air flow sensor located in the air filter housing, i notice inside the top half of the housing i notice what looks like another filter. this one is held in my plastic studs that have been heated to retain this "filter", is there some recommended way to clean this "filter". mine is pretty gray looking. i've replaced the bottom removable filter a few times within the three years i've owned the car. i would assume cleaning or replacing this filter would do wonders in getting more air into the engine. the engine runs like a top, and idles at 900rpm smoothly. i get some where around 30 to 31 miles to the gallon. just need to get the stupid "check engine" light to turn off for inspection.
5 Answers
  • darkmind
    darkmind 8/24/2010
    You can visit this link to have more idea on your trouble code http://www.obd-codes.com/p0171
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  • HouseCallAuto
    HouseCallAuto 8/24/2010
    The cause is most likely to be the mass air flow sensor that you are cleaning. If the code returns after you cleaned it, replace it. Cleaning does not always solve the problem with it. On Vibe, this is the number one replaced part for this code. Don't get crazy about cleaning the other filter, its OK as is. They always look like that.
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  • fellowtravler
    fellowtravler 8/25/2010
    is there some way to test the sensor? hate to spend the money on a new part if the old is still good.
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  • HouseCallAuto
    HouseCallAuto 8/25/2010
    Yes there is but it requires the interaction of a full function professional shop grade scan tool which will require you to pay a shop lots of labor plus parts which will defeat the purpose you DIY. The odds are with you on this part. Or, don't do anything and you will save money. Here is the OE ACDELCO part >> http://www.autopartswarehouse.com/.../AC2131158.html
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  • fellowtravler
    fellowtravler 8/26/2010
    hey,
    replaced the air flow sensor with a refub one. saw no difference in engine performance and the check engine light is still on. the guy at parts America reset the code, but the light is still on. he said that sometimes depending on the car, you need to drive the car for awhile, or the number of times you start the car will reset the computer. said he would refund the money after driving the car for two days to see. any ideas?
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    fellowtravler
    HouseCallAuto 8/27/2010
    You must erase the fault code that is stored with a scan tool, you know that right? The light will not go away without you erasing the code.
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