your mechanic on Instagram: "The clear explanation of the fuel injector spray patterns shown in the image: 1. Blocked Injector Spray Pattern: Very weak or uneven mist. Cause: Dirt, carbon deposits, or clogged internal filter. Effects on Engine: Hard starting Misfires Rough idle Low power Poor fuel economy 2. Poor Spray Pattern Spray Pattern: Thin or uneven cone of fuel. Cause: Partial blockage, worn nozzle, low fuel pressure. Effects on Engine: Reduced acceleration Hesitation during throttle Hig