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  1. #1
    Join Date
    May 2012
    Location
    livonia,mi
    Posts
    188
    My Cars
    1994 bmw 525i

    p0343 and rough idle and stalling

    ok guys so i just bought a basket case e53... 2002 ,4.4, automatic, 170k miles.. p0343 code was the only code, replaced it with a oem bmw camshaft position sensor. code cleared and then came back within minutes. havent driven it as it runs too rough and sometimes stalls or idles rough and low. also smells rich. but it sounds good when i can get the rpms and idle up.

  2. #2
    Join Date
    Jun 2016
    Location
    Central, Ny
    Posts
    28
    My Cars
    1998 740il
    Does it have a good strong battery in it?

  3. #3
    Join Date
    Feb 2010
    Location
    Louisville, KY
    Posts
    162
    My Cars
    1995 BMW 525i
    May have gotten two bad parts, or there's a bad ground somewhere. Idk if it's on a relay with other things that work fine or bad relay. Check voltage to and from the unit.

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