Parts for your 2022 Toyota Land cruiser-Fuel injectors

2022 Toyota Land Cruiser Fuel Injectors

Fuel injectors are absolutely fitted to the 2022 Toyota Land Cruiser (J300 series). Toyota’s own technical material confirms it: the 3.3‑litre twin‑turbo diesel V6 (F33A‑FTV) runs ultra‑high‑pressure common‑rail direct injection with electronically controlled injectors, while the 3.5‑litre twin‑turbo petrol V6 (V35A‑FTS) uses Toyota’s D‑4ST system, combining direct injectors with supplementary port injectors for efficiency and response. These details are published in Toyota Global Newsroom’s 300 Series launch technical brief (2021) and reflected in Toyota service/repair manuals for the J300 platform.

On this Land Cruiser, injectors do the fine work of metering and atomising fuel so the engine makes strong, clean power with minimal fuss. In the diesel, each piezo injector can deliver multiple tiny injections per combustion event for smooth torque, low clatter and reduced emissions. In the petrol V6, the ECU juggles the port and direct injectors to curb knock under load, keep intake valves cleaner, and sharpen throttle feel.

They’re not a routine “change at X kilometres” item, but they do depend on clean fuel and proper filtration. For owners touring around Aus or NZ, sticking to reputable servos and replacing fuel filters on time is the best insurance. The diesel’s water separator should be checked and drained when the warning pops up, and carrying a spare filter is smart if heading remote. On the petrol V6, quality fuel and regular servicing go a long way, injector cleaning isn’t usually needed unless symptoms crop up.

Signs an injector needs attention include hard starting, rough idle, misfires, smoky exhaust (especially on the diesel), pinging under load (petrol), poor economy, or a fuel smell. A workshop can run scan-tool diagnostics, balance/return-flow tests and leak checks to pinpoint the culprit.

If replacement is required, the diesel’s injectors are precision parts that should be tested, coded and fitted by a specialist. Always replace sealing washers, register the new injector compensation codes and complete the required ECU learning procedures. Petrol injectors can often be tested and ultrasonically cleaned, if they’re beyond saving, fit quality replacements and inspect the rail and seals. Look after them and it’s not unusual for injectors to go well past 200,000 km, especially with clean fuel and timely filtration.

• Top tips: use quality fuel, change filters on schedule, drain diesel water when warned, and fix any fuel contamination quickly.

Does the 2022 Land Cruiser have different injectors for petrol and diesel?

Yes. The diesel runs common‑rail piezo injectors at very high pressure, tailored for precise multiple injections. The petrol V6 uses a dual system (direct plus port injectors) managed by the ECU to balance performance, economy and valve cleanliness.

How often should injectors be serviced or replaced?

There’s no fixed interval. With good fuel and timely filter changes, many last well beyond 200,000 km. Diesel injectors may warrant testing around 150–200,000 km if symptoms appear or if the vehicle has seen questionable fuel. Replace only when diagnostics confirm a fault.

What symptoms point to a bad injector on a J300 Land Cruiser?

Hard starts, rough idle, misfires, diesel smoke (black/white), poor fuel economy, fuel odour, or a check engine light. Don’t keep driving if it’s severe—unburnt fuel can damage the DPF (diesel) or catalytic converter (petrol). Get it scanned and pressure-tested under the bonnet by a pro.