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  1. #11
    Saab Owner Digger's Avatar
    Join Date
    28 Oct 2016
    Location
    Minneapolis Minnesota
    Posts
    969
    Saab(s)
    2006 9-3 2.0t SportCombi
    Thumbs Up:   143
    Quote Originally Posted by Kazamario View Post
    Digger, didn't he say he cleaned the MAF?

    Sent from my SM-G930P using Tapatalk
    He did say that he cleaned the MAF and cleaning a dirty MAF gets it working like a clean MAF should, cleaning doesn't fix a bad MAF and these things do go bad.

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  2. #12
    Saab Enthusiast Kazamario's Avatar
    Join Date
    07 Jun 2013
    Location
    Wausau, WI
    Posts
    192
    Saab(s)
    2006 Saab 9-5, 2004 Saab 9-5 Aero; 2002 9-3 HOT Hatch
    Thumbs Up:   5
    Thanks for setting me straight!

    Sent from my SM-G930P using Tapatalk

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  3. #13

    Join Date
    14 Aug 2017
    Location
    Austin, Tx
    Posts
    2
    Saab(s)
    2004 Saab 9-5
    Thumbs Up:   0

    #me to

    Quote Originally Posted by Quiet_Ripjaw101 View Post
    After hearing several other suggestions on how to increase my mpg a common one was the DIC, I had a crappy Pro-Parts one and the CEL came on so I went and brought a brand new Saab OEM DIC, this did not change my mpg whatsoever, I am still getting 13-15 mixed. So far I have cleaned the MAF and Throttle body, changed spark plugs (NGK 6290), changed fuel filter, new air filter, new oil (0W-40), good gas, Fuel injector/fuel system additives and brand new Good Year Eagle Sports. I'm a high school student and gas is very expensive near me so there are days I walk to school just to save gas so any suggestions at this point will help, one of many reasons I bought this car was so I could have a performance saloon and still not break the bank of gas but so far that's not happening.
    ....Im having the same problem, freshly tuned tagged and inspected, but I have lost 3 miles mpg somewhere, have you foun a solution?

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  4. #14
    Saab Fan
    Join Date
    02 Oct 2016
    Location
    Massachusetts
    Posts
    10
    Saab(s)
    2008 Saab 9-5
    Thumbs Up:   0
    OP, I didn't see you mention the O2 sensor (fuel/air ratio sensor).

    The MAF sensor measures the airflow into the engine, the fuel/air ratio sensor measures the combustion efficiency and the ECU adjusts the fuel trim accordingly.

    Your problem is probably a bad O2 sensor. However, before you replace it make sure there are no air leaks between the MAF and the intake manifold and check the two large o-rings at the throttle body. Also look for exhaust leaks upstream of the O2 sensor. If that all checks out, replace the O2 sensor. Buy a Saab OEM sensor, no aftermarket.

    Final thing to do after that if still no joy is install a new OEM MAF sensor.

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  5. #15
    Saab Enthusiast Kazamario's Avatar
    Join Date
    07 Jun 2013
    Location
    Wausau, WI
    Posts
    192
    Saab(s)
    2006 Saab 9-5, 2004 Saab 9-5 Aero; 2002 9-3 HOT Hatch
    Thumbs Up:   5
    Hows tire pressure?

    Sent from my SM-G930P using Tapatalk

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  6. #16
    Saab Fan
    Join Date
    08 May 2012
    Location
    Montgomery , Al
    Posts
    20
    Saab(s)
    2004 9 -5 Aero
    Thumbs Up:   0
    I would only get the recommended platinum plugs. I tried something along the lines of iridium and did not get better results at all. Quality tires and air pressure helps too. Also check your vaccum lines and connections

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