Parts for your 2018 Toyota Land cruiser-Maf sensor

2018 Toyota LandCruiser MAF sensor

Based on Toyota Service Information (TIS) Repair Manual coverage for URJ200 and VDJ200 EFI systems, the Toyota Electronic Parts Catalogue (EPC) for the 2018 LandCruiser 200 Series, and DENSO component catalogues, a hot‑wire Mass Air Flow (MAF) meter is fitted to the 2018 LandCruiser. These sources list an air flow meter for both the 5.7‑litre petrol (3UR‑FE) and the 4.5‑litre V8 diesel (1VD‑FTV) variants, mounted in the intake duct just downstream of the air cleaner.

The MAF sensor on a 2018 Toyota LandCruiser measures the actual mass of air heading into the engine, letting the ECU trim fueling and ignition precisely for smooth running, good power and tidy emissions. On the petrol 3UR‑FE it sits between the airbox and throttle body, on the diesel 1VD‑FTV it’s positioned after the air filter on the way to the turbo inlet. Because it reads real airflow (and usually intake air temperature, too), it’s a key reference for cold starts, cruise economy, EGR and turbo control on the diesel, and tip‑in response on the petrol.

As part of regular servicing, it’s smart to include the MAF in the intake inspection. If the air filter has copped a lot of dust or an oiled aftermarket filter has been used, the MAF’s sensing element can get coated. That can lead to rough idle, flat spots, so‑so fuel economy, black smoke on the diesel or a check engine light. A quick look and a light clean with a dedicated MAF‑safe cleaner usually sorts mild contamination. Don’t touch the sensing wire, don’t use brake or carb cleaner, and let it dry fully before refitting.

Good workshop practice on a LandCruiser 200 is to:

• Inspect the air filter and MAF every 20,000 km (or sooner in dusty, outback conditions).
• Ensure the airbox seals and intake clamps are airtight so unmetered air doesn’t slip past.
• Avoid over‑oiling performance filters, excess oil can foul the sensor.
• If the battery has been disconnected, allow a short idle relearn and gentle drive so trims settle.
• Scan for DTCs like P0101–P0104 and check fuel trims/airflow g/s before condemning the sensor.

When replacement is due (damage, repeat faults, or out‑of‑spec readings), stick with quality OEM‑spec parts to keep the LandCruiser’s ECU happy. Fitment is straightforward under the bonnet with basic hand tools—just be sure the arrow on the housing points in the airflow direction and the connector is clicked home. With a clean, correctly reading MAF, the 200 Series runs just how it should: strong, efficient and dependable on the highway or the red dirt.

Popular questions about the 2018 Toyota LandCruiser MAF sensor

Where is the MAF sensor located on a 2018 LandCruiser 200?
It’s fitted in the intake duct straight after the air cleaner. On petrol models it’s just before the throttle body, on diesel models it’s in the pipework leading to the turbo inlet. Look for a small rectangular sensor body with a 5‑pin electrical connector.

Can the LandCruiser’s MAF be cleaned, or should it be replaced?
Light contamination can usually be cleaned with a dedicated MAF‑safe spray. Avoid touching the sensing element and let it air‑dry completely. If cleaning doesn’t restore stable readings or relevant fault codes return, replacement with an OEM‑spec unit is the go.

What are the symptoms of a failing MAF on this model?
Common signs include lumpy idle, hesitation, increased fuel use, diesel smoke, limp‑home behaviour and a check engine light. A scan showing codes like P0101–P0104 or airflow readings that don’t match engine load points to a MAF issue.