If you have disconnected your gas line and are unable to turn on your gas, there are a few things you can do. The first is to check the faucet. If the water is not coming out of the faucet, it may be because the faucet is not properly connected to the gas line. You can try disconnecting the faucet and reconnecting it, but make sure that you do this correctly so that water does not flow back into the line. If all else fails, you can call a plumber to come out and fix your problem.