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Thread: e46 320d loss of power, stall with clutch in?!

  1. #1
    Join Date
    Nov 2020
    Location
    Bournemouth, UK
    Posts
    1
    My Cars
    2006 E46 320Cd MSPORT

    Angry e46 320d loss of power, stall with clutch in?!

    My 2006 e46 320Cd msport was intermittently losing all power when driving, no matter what gear i was in the power wouldnt go through and i'd start to slow. I then got the CEL so plugged in the OBDII which showed error code P0401, to sort this i cleaned the EGR valve which worked for about 20minutes until the error came back. So i've replaced the valve and it has made no difference. It is now at the point where i can sit in neutral with my foot to the floor on the accelerator and the revs wont go up, they even drop in judders and stall (still in neutral, clutch in, car not moving). Any ideas what this could be? OBDII is saying there aren't any errors but I cant even roll the car downhill without stalling

    All help would be greatly appreciated, completely stumped by this
    TIA

  2. #2
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    9,933
    My Cars
    2018 BMW M240i
    What tool are you using to scan the engine computer (DDM in BMWspeak)? It’s obviously not sophisticated enough to really see what’s going on. I suggest the OBDFusion app for your smartphone or tablet. There are several good threads on the app in this forum. The app will let you see various data streams which can be helpful in diagnosing the issue.

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