How to clean MAF

[professorbob]

In an effort to correct a problem with the engine being unable to move out of limp home mode. (see thread elsewher) I have removed the Idle Speed Control Valve ISCV and the Throttle Position Sensor TPS to eheck. The position sensor checks OK with the meter. The Idle Speed Control Valve was covered with bypass blow by. I use carb/brake cleaner and sprayed down the recirculation tube while keeping the stepper motor upright so it would the valve closure cone. I then used compressed air to blow out the port and cone. It is somewhat clean, but have a .... QUESTION: Is the passage suppose to be air tight. I am still able to blow by the valve cone. Also, are there any resources other than the dealer for shaped hoses, as the 1/2 inch broke off when I removed it.