Hello Kungfu0210 The good news is, gave your posting and the photo to my husband(Rod). He went under Little Red (the Freelander- we are sad people who name our cars!) disconnected the pipe as per your instructions and Hey presto no barrier at 70mph. Solenoid now ordered and will be fixed...

have read how someone sorted out this problem when it occurred on climbing a hill. Ours, bless it! does it intermittently on the flat. Has had new fuel pump fuel filter and yes we had the split turbo hose and black smoke too. that is cured but no one can seem to cure the intermittent power...