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Engine problems

Discussion in 'A4/S4 forum(B5 Chassis)' started by Danny Cawsey, Mar 11, 2014.

  1. Danny Cawsey
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    Danny Cawsey Cawsey

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    Hi All, I know this isn't A3/S3 related but i know there's a lot of knowledgeable people here.

    My boss has a 2000 b5 rs4 with a few problems and need some help diagnosing whats wrong with it.


    I took it for a drive today and its got a bit of a lumpy idle doesn't really settle. when on boost its got a very slight stutter and doesn't pull so smooth.

    He recently blew the turbos and has just had two brand new one's fitted a couple weeks ago not sure if this could be anything to do with it?.

    Anyway i checked for fault codes and here is what i got:

    16730 Camshaft position sensor
    16730 Engine speed sensor
    17930 Camshaft adjustment bank 2
    18010 Power supply b+ terminal 30, voltage too low

    Any Help would be much appreciated.

    Thanks, Danny
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  2. s3dave
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    s3dave TFSI Hybrid

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    have you tried resetting?
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  3. Danny Cawsey
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    Danny Cawsey Cawsey

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    resetting? as in erasing the fault codes?
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  4. Tricky20vt
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    Tricky20vt Member

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    Could be a timing issue with all the related sensor faults being logged. Has it had the belt done recently?
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  5. s3dave
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    s3dave TFSI Hybrid

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    Yes mate, just seems like codes you would get after an overhaul of the engine
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  6. adamss24
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    adamss24 Well-Known Member

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    Take rocker covers off, i am pretty sure the cams are worn...
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  7. Sulli79
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    Sulli79 Active Member

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    Think you can check the timing in one of the measuring blocks on vagcom
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  8. Bradderz_1988
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    Bradderz_1988 Dont replace it, Upgrade it !!

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    Check timing also clean up all the earth points behind coolant bottle sure ive heard of bad connection/high resistance causing a similar issue !!

    Why did the turbos blow ?? Sounds like its pulling timing back on bank 2 maybe due to worn cams as above ??
    #8
  9. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    The fault codes arent complete, the description bit that tells you whats actually wrong hasnt been posted.

    Theres also a duplicate Pcode with two different names, which isnt possible. (the second one)

    The first code and third code both point to mistimed engine or a broken/faulty tensioner.

    16730/P0346 - Ross-Tech Wiki
    17930/P1522 - Ross-Tech Wiki

    The last code just means the battery was disconnected at some point.
    #9

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