ZF Toyota Corolla ZZE121 Fuel Injector 23250-22010 3ZZFE Engine

This injector directly replaces OEM numbers 23250-22010 and 23209-22010; fully universal with no modification needed. Core function is to precisely control fuel injected into cylinders to ensure 3ZZ-FE engine air-fuel concentration at optimum. Specially matched to Toyota Corolla ZZE121; after installation, noticeable improvement in idle jitter, acceleration, and fuel economy. If cold start is difficult, exhaust emits black smoke, or check engine light is on, injector aging likely; replace early to protect catalytic converter.