Please choose the correct solution to the question: How to find a bad wire in a car.

Solution1: Locate the radiator its metal box, run your hands through the wires with the car off and gently wiggle them, if you see a spark its possibly grounded to metal and a bad wire.

Solution2: Locate the ECU its plastic box, run your hands through the wires with the car off and gently wiggle them, if you see a spark its possibly grounded to metal and a bad wire.

Answer format: solution1/solution2
Answer: solution2