The oiler is one of the most sophisticated parts in the car, its performance parameters change determines the vehicle's power, emissions, life and driving performance changes, when replacing the injectors, if the use of products inconsistent with the original vehicle injector parameters, usually the following problems: start difficulty, especially at low temperatures more difficult to start. The life of oxygen sensors and catalytic converters is reduced. Friendship increased, the engine was weak, and the emissions exceeded the standard. Slow speed, idle speed instability, poor driving performance. Heavy loads are prone to detonation or even cylinder steam, damaging the engine. https://www.rcautoz.com/fuel-inj...recision-car-nozzle.html