Due to hot start issue of my FC, i have read about the fuel cut switch post which can cure this problem, which i am going to do it tomorrow morning. But i have a question, when the switched is installed, does it mean that when the engine is hot, i flick the switch to on and start the car? do i need to swtch it off after i started the engine or do i just leave it on?

 

The switch will cut power to the fuel pump, so that you can prevent it from over-supplying fuel when you try to start the car.

So, you turn it "off" when cranking, and then turn it on immediately when the car starts. If you have really bad flooding problems due to leaking injectors, you would also use the switch to shut the motor down. By turning off power to the pump, and letting the motor run till it's out of fuel (takes about 2 secs), you de-pressurize the system so that you don't get leakage past the injectors. You would then turn the switch back to the "on" position when you're ready to start the car again.

 

I've found that you need to flick the switch to on while cranking for a second then off. That'll put enough fuel in the system to start it, but not flood it. Then, once on, turn it on for good.