MisFiring on cold starts -___-

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  • Slicktop_serg
    Advanced Member
    • Nov 2011
    • 198

    #1

    MisFiring on cold starts -___-

    So my car misfires until it warms up, when it is warm it drives like An angry german , i changed the plugs, cap and rotor, the only thing i haven't changed is the wires and ignition coil. please help me


    91' Alpine II 318is Slick top - Totaled
    89' Lachssilber 325is - :p
  • Cabriolet
    R3V OG
    • Apr 2010
    • 9620

    #2
    could be temp sensor. i would check those first
    Much wow
    I hate 4 doors

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    • Cletonius
      R3VLimited
      • Oct 2010
      • 2809

      #3
      +1 for temp sensors.

      I also had a bunch of rough idle problems that were caused by a faulty fuel pressure regulator.
      - Josh
      1990 325is

      Need a shift boot?
      Looking to buy shift boot frames, PM if you have one to sell

      Here's what happens when you let the internet pick your license plate

      Comment

      • audiquattrot
        No R3VLimiter
        • May 2008
        • 3836

        #4
        I had a similar issue, and it turned out to be the spark plug closest to the firewall which I didn't torque down all the way. Dealt w the cold start issue for over a yr until I realized it was just that lol
        www.instagram.com/snwmble
        #snwmble

        Current:
        '05 BMW M3 - Silver Grey/Imola Red
        '90 BMW 325iX - Sterling Silver/Houndstooth sport(5-speed converted)
        '15 Mini Countryman - Blazing Red/Carbon Black

        Past:
        '01 Audi Allroad - Light Silver/Platinum Saber Black
        '88 BMW 325iX - Diamond Schwarz/Silver sport *Sold*
        '01.5 1.8TQ - Brilliant Black/Nogaro Alcantara ...after 8.5yrs, *Sold* =(
        '90 BMW 325i - Schwarz/Tan sport *Sold*
        '89 BMW 325ix - Diamond Schwarz/Black sport *Sold*

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        • jlevie
          R3V OG
          • Nov 2006
          • 13530

          #5
          The first thing I'd would be to smoke test the engine. It doesn't take much of an intake leak to cause problems. Since the ignition wires are probably well past the point that should have been replaced (10 years or 100k) I'd also immediately replace them.
          The car makes it possible, but the driver makes it happen.
          Jim Levie, Huntsville, AL

          Comment

          • Slicktop_serg
            Advanced Member
            • Nov 2011
            • 198

            #6
            Originally posted by Cabriolet
            could be temp sensor. i would check those first
            I changed the temp sensor and sparks about 10k miles ago and the cap and rotor maybe like 1.5k miles ago


            91' Alpine II 318is Slick top - Totaled
            89' Lachssilber 325is - :p

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