Whenever I shut the car off I hear an electric kinda buzz for a sec or two coming from a sensor on the intake man. The car runs fine and idles fine, but I was wondering if this is somewhat normal, or harmfull. It is coming from a black sensor on the intake maniflold pretty much where the pipe comes into the intake. It did it before I instaled the turbo timer, and it does it after, so I dont think that is the problem. It is a hks type one w/ a harness. Also all of the speed/rpm functions work great, so I believe its spliced right as well. It only happens for a brief sec after the car is shut off, or the turbo timer shuts the car off. I was just wondering if this is harmfull or no biggie. Thanks.