Few problems

[crazynovagsi]

Hi

Firstly for some reason when i turned my lights on the car would switch off?

and then when im driving the car wants to cut out buh comes back on, also when it was parked up there was no power buh it would come back on in a few minutes.

Now when i try turn the car on it doesnt want to start.
Anyone know what the problem could be?

[nova-taken]

sounds to me like a bad earth to the body mate, check all your connections

[C612DNM]

Check all of your earths - battery to chassis, chassis to engine/gearbox, all of the earths around the ECU, throttle body, injector rail, etc..... I'm guessing that something important was using the lights as an earth route, so turning them on lifts the potential of that point, and the imaginary earth goes away - leading to the engine stopping.