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m20b25 blue smoke now 1252 code

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    m20b25 blue smoke now 1252 code

    The car started up normal then when I put it in gear and started moving it started a heavy misfire and puffed out blue smoke immediately with a heavy gasoline smell. I'm going to do a leakdown test to get some idea of what's going on. Has anyone ever experienced this?
    Last edited by blownm20; 01-11-2015, 07:13 PM.

    #2
    blue smoke means your burning oil, there are many posts about this. Could be rings or leaky valve stem seals

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      #3
      Turned out to be a headgasket. I know blue smoke is oil. I was more curious about the gas smell.. my only theory is the motor was not getting enough compression to burn all the fuel.

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        #4
        yeah probably unburnt fuel due to missfire
        89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

        new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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          #5
          Now I'm getting a 1252 code. Injector #2. The car is an 87is no c191 connector for the injector harrness. Can it really be as simple as clogged or faulty injectors? All the connectors are fine. Compression is <10% off. Brand new bosche sparkplugs, cap rotor, new 8mm wires.

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