Parts for your 2019 Toyota Land cruiser-Maf sensor

2019 Toyota LandCruiser MAF Sensor

Based on Toyota’s LandCruiser 200 Series Repair Manual (2018–2020, Engine Control System for 1VD‑FTV and 3UR‑FE), the Toyota Electronic Parts Catalogue for MY2019 J200, and Denso hot‑film MAF service information, the 2019 LandCruiser is fitted with a Mass Air Flow (MAF) sensor. It’s mounted in the intake duct just after the air filter, and the ECU uses it alongside the MAP sensor to precisely manage fueling and EGR.

The MAF sensor’s job is simple but critical: it measures the actual amount of air entering the engine so the ECU can deliver the right amount of fuel. On a 2019 LandCruiser—whether it’s the 4.5‑litre 1VD‑FTV V8 turbo‑diesel popular in Australia and New Zealand, or the 5.7‑litre 3UR‑FE petrol found in other markets—the MAF’s clean, accurate signal keeps cold starts smooth, throttle response crisp, emissions in check, and fuel economy on point. When it’s dirty or failing, drivers might notice lazy pick‑up, smoky exhaust on diesels, higher fuel use, or a check engine light with codes like P0100–P0104.

As part of regular servicing, it’s smart to give the MAF some love. Inspect the air filter and intake plumbing first—any dust leaks upstream will contaminate the sensor in no time. If the filter’s an oiled type, go easy with the oil, excess mist can coat the sensor element. For cleaning, use a dedicated MAF cleaner spray only. Don’t touch the sensing film or wire, and don’t blast it with compressed air. A quick removal, a few careful sprays, and full air‑drying before refit usually restores a lazy sensor to proper behaviour.

Intervals? In dusty Kiwi backroads or outback conditions, consider checking the MAF every 20,000–30,000 km, in cleaner city use, every 40,000–60,000 km is fine. Replacement is straightforward if it’s genuinely faulty: disconnect the battery (protects the ECU), unplug the connector, remove the two screws, swap the meter, and torque the fasteners evenly to avoid air leaks. After refit, clear any fault codes and let the ECU relearn with a short drive cycle. Keeping the MAF and the intake airtight pays off with better drivability, fewer regens on diesels, and a happier LandCruiser all round.

• Typical signs it needs attention: rough idle, flat spots, black smoke (diesel), poor fuel use, or MAF‑related DTCs.
• Best practice: quality paper air filter, intact intake ducting, and MAF‑safe cleaner only.

Popular questions about the 2019 Toyota LandCruiser MAF sensor

Does the 2019 LandCruiser use both MAF and MAP sensors?
Yes. The MAF measures the actual air mass entering after the air filter, while the MAP reads manifold pressure. The ECU blends both for accurate fueling, turbo control (diesel), and EGR management, improving drivability and emissions.

How often should the MAF sensor be cleaned or replaced?
In dusty conditions, inspect and clean every 20,000–30,000 km, in lighter duty, 40,000–60,000 km is fine. Replace only if cleaning doesn’t restore proper readings or if faults persist. Always rule out intake leaks and a clogged air filter first.

Where is the MAF sensor located on a 2019 LandCruiser?
It’s fitted in the intake tube immediately downstream of the air filter housing. Look for a small rectangular sensor body with a plug and two mounting screws—easy to reach under the bonnet without major disassembly.