hey guys, help needed getting my s2 rs turbo going, i have replaced the fuel pump relay as it was melted, now the fuel pump runs as it should, the car cranks over but just wont fire, the only way it fires up is if u just hold open the flap on the metering unit slightly and it will start, rev up nicely and all that, soon as u let it shut, the car cuts out and wont start, i have replaced the metering unit with another one but still no joy, exactly the same, just dont understand it, any help would be massively appreciated. cheers