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fuel economy
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  1. General E46 Forum
    Hey Guys, new poster here! Recently, I cleaned my IAC valve and throttle body and replaced a crumbling fuel pressure regulator hose connector; after starting up my car I found it had a rough cold start. I can often hear the IAC valve knocking very loudly while the revs bounce around for a...
  2. General E46 Forum
    It all started two weeks ago. in this order: 20 days ago: One angel eye not working on the Xenon beam 10 days ago: Second angel eye not working on the H7 High beam + H7 High beam not working 5 days ago: ABS + Emergency Break + Warning lights turned on 2 days ago: Speedometer not working 1 day...
  3. General E46 Forum
    I have been doing some research on swapping out my 5 speed for a 330i 6-speed (don't question, just accept this) my transmission and driveshaft don't have much life left on them and since I am moving to a 6-speed and swapping the differential (moving from a 3.07 to a 2.93 ratio) for fuel...
  4. General E46 Forum
    so i changed my valve cover gasket recently and as i was goin to take off the plastic bmw cover i found out that my car has these two plugs next to the silver stabilizer.......i called bmw and they said the wire with the yellow ring is the male end of my o2 sensor(which is not connected wat so...
  5. General E46 Forum
    my 2003 325xi is getting really poor gas mileage... ive checked the usual, tire pressure, maintanence, etc... the car has 90k miles on it... Any thoughts?
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