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2007 BMW 328i Question: codes u0401/p0303 engine light comes on ramdemly

 

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jake abc123, Youngstown, NY, December 29, 2013, 08:11
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changed coil pack on cyl 3 too cyl 2 failed then changed spaked plugs failed

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  • Answer #1

    G. T. Service Center (4196 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG December 29, 2013, 10:24
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     Master

    Cannot verify the U0401 code, but a 'U' code is normally a no communication on the Can lines between the modules.

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