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Message: <blockquote data-quote="TonsiLBoxeR" data-source="post: 1452605" data-attributes="member: 166287">I have a 1992 BMW 325is, I've had a number of problems with the engine over the last 6 years.  I've replaced the fuel pump and fuel filter twice, catalytic converter & O2 sensor twice.  My car started puttering and losing power while accelerating a few days ago, first it was here and there, now its more prominent and almost impossible to drive, especially up any kind of incline.  What would be the most probable cause?  Spark? Fuel Pump?  I just want to know where I should start, ...no check engine light for anything beside 'washer fluid low' lol.</blockquote>