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high boost misfire & lack of power
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Posted by Denis Marusic [Email] (more from Denis Marusic) on Wed, 7 Nov 2007 16:33:43 Share Post by Email
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Can somebody tell me where I can bring my car for diagnostic to find what is wrong with car.---In the New Jersey -- Went to 2 SAAB dealers & one independent SAAB shop. All 3 did not want to look at the car becouse is highly modified !!!! 99 9/5 model;manual stage 4 by Nordic. Car was loosing power & I used SNAP ON OBD 2 computer scaner & found out that MAS Air Flow Sensor went bad(but no CHECK ENGINE light come on) After that car still had no power.I found after that that engine calculated load goes down as you get car under boost.Soon after started to misfire at 14 & up lbs of boost.By that time computer makes air /fuel very rich to reduce predetonation.Car has lots of new parts(in last 2 years-25 000 miles)New fuel pump assy.fuel lines,fuel pressure regulator,new DI cassette,colder range spark plugs(3 different sets)(ngk)new trotle body ... Please!!! If You have any segestion:I would apreciate. THANK YOU

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