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roughness

  1. Cold Start roughness

    Range Rover Classic
    Have a 91, with 3.9. Runs as it should except for the first 30-60 seconds after a cold start. It seems to run on 4 or so cylinders then the rest come on after a minute, then it seems normal. Any suggestions? Probably not related, but another thing is that the tach just lays at 0 if it's real...
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