Fuel Injectors

Fuel Injectors deliver fuel into the engine in a controlled spray pattern so it can mix with air and burn efficiently. When injectors become worn, blocked, leaking or electrically faulty, the vehicle may run rough, misfire, use more fuel or lose performance.

Brands such as PAT, AFI, Bosch, VEMO and Raceworks offer fuel injector options across replacement, service and performance applications. The correct injector depends on the vehicle, engine, fuel system type, flow requirements and connector style.

Why Fuel Injector Condition Matters

Fuel injectors need to deliver the right amount of fuel at the right time. A faulty injector can cause poor combustion, rough running, hard starting, fuel smell, smoke or engine fault codes. In performance applications, injector sizing also needs to suit the engine setup and tuning requirements.

Injector faults can sometimes resemble ignition, sensor or fuel pressure problems, so diagnosis and fitment are important. Related parts such as fuel pumps, filters, seals and wiring may also be worth checking depending on the fault.

Common Signs You May Need Fuel Injectors

• Rough idle: The engine runs unevenly at idle.
• Misfire: One or more cylinders may not fire correctly.
• Poor fuel economy: Incorrect fuel delivery can increase fuel use.
• Hard starting: Leaking or weak injectors can affect starting.
• Fuel smell: Leaks or over-fuelling may create noticeable odours.
• Loss of power: Poor spray pattern or flow can reduce performance.
• Engine fault codes: Injector circuit or fuel trim codes may be stored.

Choosing the Right Fuel Injectors

The easiest way to find the right fuel injectors is to use our simple rego finder or manually select your vehicle. This helps narrow the product list to options suited to your vehicle, so you are not sorting through injectors that may not match your engine, fuel system or connector style. Always check the product page for any specific notes.

When comparing suitable options, check whether the injector is standard replacement or intended for a modified fuel system. Also consider seals, clips, fuel pressure and tuning requirements where applicable.