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gas on disa
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  1. DIY: Do It Yourself
    My 2004 330i ZHP with about 75,000mi encountered some difficulties this winter when it was cold and snowy. Symptoms were a rough idle, hesitation, and reduced power. I don't have a long commute and it was parked outside, so I suspect a CCV issue. The car did pop a SES light with codes P0171...
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