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Need Advice: Engine stalls if not warmed up

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    Need Advice: Engine stalls if not warmed up

    Good day guys, I need your advice. I have an 85' 325 and every morning before I leave my garage, I have to warm up engine for 5 minutes otherwise engine stalls. After 5 minute warm up, engine runs great with no problem at all. After 8 hours at work, before I leave my office I have to warm it up again otherwise it would stall, but after 5 minute warm up car runs great again. What seems to be the problem here ?

    Thanks in advance.

    #2
    Is this a m20b27 or an m20b25? or aka an i engine or eta engine? Lets make sure everyone is on the same page to start with.
    https://www.facebook.com/BentOverRacing

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      #3
      It's a 325e japan version, not sure if its an m20b27 but engine is very similar to a 325e us version

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        #4
        My first suspicion would be intake leaks.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

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          #5
          Appreciate the reply guys, will check for intake leaks jlevie - could it also be a faulty temp sensor ?

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            #6
            Does it fast idle?
            Ma che cazzo state dicendo? :|

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              #7
              it idles normally when you start it in the morning - if you dont warm it up for 5 mins, when you shift to drive... rpm drops then engine dies

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                #8
                Idles normally as in it doesnt high idle when its cold?
                Ma che cazzo state dicendo? :|

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                  #9
                  Could be a bad icv, try disconnecting it in the morning and see if it makes it worse.
                  Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                  OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

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                    #10
                    Here's an update, culprit were spark plugs and 1 defective socket of the high tension wire - thanks for the valuable inputs.

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