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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-28-2015, 06:33 AM   #1
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Join Date: Apr 2015
Posts: 4
Where do I start

Ok I have a 2004 330i with about 125000 miles . When I first start it up in the morning it runs great but after about 60 miles it acts stupid starts missing when I come to a stop won't idle properly and it starts smoking white smoke and smells like firecrackers to me anyway it goes away when you speed up . Seems like it is overloading on fuel or something . So any idea where I should start looking ? Or just take it somewhere and plug it up to a computer and get a garage to check it ? Please help..
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