2003 E46 318ci - VVT Valvetronic motor diagnosing HELP!!!

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Thread: 2003 E46 318ci - VVT Valvetronic motor diagnosing HELP!!!

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  1. 2003 E46 318ci - VVT Valvetronic motor diagnosing HELP!!! 
    #1
    Bimmer Fan
    Car Details
    Omar007's Car Details
    Model of Car:
    318ci 2000cc
    Year of Manufacture:
    2003
    Transmission Type:
    Manual
    Car Body Type:
    Coupe

    Join Date
    Nov 2012
    Location
    London
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    Hi Guys,

    I would really appreciate it if someone could help me out on diagnosing the VVT motor.

    I hooked my car up with INPA/DIS and it came up with 2 codes: 2862- Variable valve gear- voltage supply, power output stage- Deactivation faulty- Fault currently not present- Servomotor
    & 2865- Power supply limit VVT- emergency (Limp home mode).

    What I've done so far:

    I have a brand new battery put in 2 months ago.
    I replaced the VVT relay (K6316 Relay) with a new one.
    I replaced the VVT motor with a second hand unit.

    Symptoms:

    PS. Car always starts without a fail regardless if cold/hot start.

    When I start the engine, Check engine light & EML lights up & stays lit, with loss of power & won't rev over 2000rpm (Limp home mode).

    When I switch it off & restart, check engine light remains on but EML light goes away with full power though sluggish but car would rev upto redline. (NOT Limp mode)

    I can drive all day without any problems as such as long as I restart the car should I switch it off.


    I have access to a multimeter, however I don't know the correct voltage/amp/ohms to look for in the connections/connectors etc.

    Also should the motor spin at all or move when keys are set to ignition with engine off?

    Thanks.
     
     

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    #2
    BMW Master
    Car Details
    gunslinger1's Car Details
    Model of Car:
    company car
    Year of Manufacture:
    company car
    Transmission Type:
    company car
    Car Body Type:
    company car

    Join Date
    Jan 2013
    Location
    midlands
    Posts
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    first off , i think its a bad idea replacing with second hand parts as you dont know the quality of that part.
    the VVT motor you have taken off , we will test this as i suspect that this part is faulty , get your multi meter , select ohms , right ohms measures electrical risistance , put one end of the meter on one of the terminals on the VVT motor only ( dont let it touch any thing else only that one terminal ) with the black lead put it on the motors caseing . you are testing the windings for shorting to ground . if you get any kind of risistance reading at all , the motor is scrap , you should get a reading of OL thats what the fluk meter reads . its very common that these pack in , as i have done a couple in december last year .
     
     

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