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  1. ComradeXavier

    RPM pulsing at idle when cold

    I'm curious what might cause an odd cold behavior of my 2005 NB. While the engine is warming up (from about 0 to 15 Fahrenheit in my garage overnight), if I come to a stop at a light the idle RPM pulses. Of course, I have the tiny NB tachometer, so it's hard to tell exactly what the numbers...