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Thread: E92 m3 cold start

  1. #1
    Join Date
    Jul 2013
    Location
    Panama City florida
    Posts
    16
    My Cars
    Mkv

    E92 m3 cold start

    My car has a cold start delete. Before I put on my test pipes it would be a normal cold start without any issues. Since I put the test pipes on with the tune one of my o2 sensors threw a code so I replaced it. Now I have no codes and when I cold start the car after not driving it for a while the idle will jump three times or so then level off. It jumps around 500 rpm to about 1300 rpm. The car drives strong and has no other issues once it levels.

  2. #2
    Join Date
    Dec 2013
    Location
    Redmond, OR
    Posts
    111
    My Cars
    96 328IS, 08 IB E92 M3
    Honestly I wouldn't think anything of it as long as the engine sounds good and no codes are being thrown... To really diagnose this, you would need a laptop with INPA on it or scanner tool to see AFR's when the idle jumps around. Could either be fuel or timing related, but either way as long as the DME is happy, I would continue without worry until there is a reason to worry!
    Anthony Bartolini
    Loki Motorsports
    -2008 A30 E92 M3 6MT-
    -1996 328is Drift Car-
    Stock Internal M52
    M50 Manifold
    PTE 6262, ARP's, .140 MLS
    OBX T4 Top Mount
    Tial 44mm MVR
    Tial Q 50mm
    Open Dump Love <3

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