vectra fault code

Discussion in 'Vectra' started by daz, Sep 13, 2003.

  1. daz

    daz Guest

    After reading a few posts by other members I've managed to extract a fault
    code on my Vectra.
    The code is 0443 which apparently means 'Evaporative emission control system
    purge control valve circuit malfunction.'

    What does this actually mean? Is the valve faulty or is it something a bit

    Any thoughts would be great.

    Many thanks.

    daz, Sep 13, 2003
  2. daz

    mike Guest

    mike, Sep 13, 2003
  3. daz

    G. Lovett Guest

    Carbon canister control valve.

    Fuel tanks are now sealed (no vent). A carbon canister (in O/S) wheel arch
    stores the emissions from the tank. Under given circumstances (cruise) the
    ECU opens the carbon canister purge valve (O/S wing near top of shocker)
    allowing engine vacuum to purge the carbon canister.

    The purge valve has 2 vac pipes (one to canister and one to inlet manifold)
    and a 2 pin connector.

    Circuit malfunction can be faulty valve or faulty wiring
    Make sure the valve is actually connected
    One pin has live feed (ignition on)
    Other is earthed by ECU under correct operating conditions.
    Ohmmeter between pins (plug disconnected) is around 20-50 ohms.

    G. Lovett, Sep 13, 2003
  4. daz

    daz Guest

    Brilliant! Just the kind of explanation I was after.

    Much appreciated.

    daz, Sep 13, 2003
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