I've noticed the last couple of times on starting my Juke after sitting all night it does a short sputter or misfire on start. It doesn't do it on warm starts. Should I be worried?
No sputters here, but I have been getting irradic idle for the first 5-10 seconds on cold start, like the ECU is trying to decide what to do: "1000 rpm, no, 2000 rpm, no, 1000 rpm, no 1800 rpm, no, 1000 rpm, ok, let's hold there for a minute."
Mine does that too. For me, if the weather is cold (around below 38F), the RPMs go up and down between 500-1500 rpm several times before finally getting a steady idle after 5 seconds.
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