2003 E46 320d - Turbo replaced, now fuel fault codes! P3002 P3005

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  1. 2003 E46 320d - Turbo replaced, now fuel fault codes! P3002 P3005 
    #1
    sdp
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    Hi all

    As you may have read in my other posts I have just suffered turbo failure on my 2003 320d.

    The turbo has been replaced along with oil, oil filter, air filter, breather filter and cleaned EGR valve, intercooler and cat. The car still won't start - it's trying to turn over but going nowhere.

    Before the turbo was replaced (but after the failure) the DDE light has stayed on. Today I managed to get an OBDII cable on it and found two fault codes relating to the fuel system. The OBDII software couldn't read any of the fuel sensors, but this might be the software not the car.

    The codes were:
    P3002
    P3005
    Both are described as "Plausibility for rail pressure, Positive deviation or rail pressure too low".


    Why would these codes have come up after a turbo failure? Oil did get into the engine and it rev'd highly, could the ECU have shut the fuel system down to try to stop it?
    More importantly, what can I do to fix it? I'm wondering if the engine is getting any fuel at all. Could the ECU need resetting/reprgramming?

    I really appreciate all of the advice I get here, it's invaluable!
    Last edited by sdp; 21-03-2009 at 18:26. Reason: Shit typing.
     
     

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    You really need to get the BMW specific codes read to really know what is going on, it may be a fuel pressure problem, if the pressure is low then the car will not start.

    Can you here the pump under the passenger seat prime up?
     
     

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    Pretty sure I can hear the pump yes.

    The equivalent BMW codes are apparently 4560 and 4600 according to http://www.meeknet.co.uk/E38/BMW_E-OBD_Codes.pdf if that helps anyone at all?
     
     

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    The fuel pressure needs monitoring at start up and when cranking, if it is low then it will not start as the DDE require a set minimum pressure to even fire the injectors
     
     

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    sdp (22-03-2009)

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    Thanks Ronnie, any ideas how I'd go about doing that? Or is it a job for BMW (at £115 per hour :()?
     
     

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    hi sdp,
    my original problem was starting when warm , i had fuel rail problem codes, and needed 2 x injectors, as you know my turbo went like yours, just got car back friday and is running perfect, i had garrett turbo, and replaced four injectors,also while at it got swirl flaps removed and cannot believe difference, hope you get some luck soon mate ,
     
     

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    Thanks Sparky bud.

    What order did your problems happen in? You must've shelled out a fortune, the fuel injectors aren't cheap are they? Did BMW do the work?

    Glad you've got your baby back - now I just need mine! I think it's going to have to be towed to BMW again to have a look at the fuel system. I can't think why the injectors would go at the same time as the turbo, I'm hoping the ECU has shut it down or something :(
     
     

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    hi mate , starting prob was first ,which bmw diognosed, then the dreaded turbo, i had a mate do the work at his garage, in all he charged for the lot £1915.00, ouch!!!!! but now hope all will be good , he got bosh injectors brand new for £165.00 each . Ronnie advised me to get the leak off test and he was spot on, clever guy knows his stuff, good luck mate let me know how you get on
     
     

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    Did you have to do any ECU resetting or anything like that? £165 per injector is reasonable. My sister had hers done at BMW and paid £1300 for the job (and they used refurbs).

    I can't believe how unreliable one model of car can be - seems turbos and injectors are very common and expensive. :(
     
     

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    no mate, no resetting of ecu, bmw quoted £658.00 approx for 2 injectors, so that didnt happen ,
     
     

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