



Laser spark plugs used for two hours, the reason is that the spare parts seller told me your car's spark plugs are laser type, and the previous owner changed the tensioner, the laser spark plug was replaced with a regular one, and the tensioner started malfunctioning and turning off on me, so I replaced them with regular spark plugs. The top tensioner and the spark plug which is black in color, the engine has issues due to faulty sensors, that's why it turned black, or maybe you see it working independently among them 120, I bought them for 160, the spark plugs are original agency ones, not counterfeit.
