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VR engine into VN Series 1

Discussion in 'Electrical Wiring / Questions' started by ryan1980, Apr 14, 2009.

  1. ryan1980

    ryan1980 New Member

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    hey guys, i have an old e21 bmw which i brought a few months ago, with a vn series 1 engine in it. Went really well until the head gasket went.

    Anyways ive found a VR wreck and put the engine into it. Everything's done cept but i cant get it running. I used the wiring look from the VN. I just extended the wire for the ecu temp sensor.

    I also tried the VR ecu - still no go.

    What are the differences? What do i have to do to get this going?

    Anyone in perth want a cashy job to get this going?

    Ryan
     
  2. delcowizzid

    delcowizzid on holiday

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    should run on the vn ecu mate could do with a tune to suit though as they are a bit different but it will be drivable. was the vr a runner when you got it before doing the swap.it wont run on the vr ecu without the security disabled in the tune.
     
  3. ryan1980

    ryan1980 New Member

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    yeah the vr was a runner. well the ecu's are definetly different as when i plug in the VR ecu theres no fuel pump, and the thermo fan comes on!

    any ideas what it could be? Theres fuel... theres spark...
     
  4. delcowizzid

    delcowizzid on holiday

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    got all the earths that connect to the vn loom connected to the block well. if it was vr auto the vr ecu will be totally different so will do funny things.are the injectrors pulsing
     
  5. delcowizzid

    delcowizzid on holiday

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    allso did you not put the fuel supply hoses on backwards by any chance
     

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