Parts for your 2019 Toyota Land cruiser-Map sensor

2019 Toyota Land Cruiser MAP sensor — what it does and how to look after it

Based on Toyota’s factory service information (Toyota TIS/FSM for J200, Engine Control sections covering “Manifold Absolute Pressure Sensor” and DTCs P0106–P0108) and the Toyota Electronic Parts Catalogue for the 2019 J200, the vehicle is fitted with a MAP sensor on both common engines: the 1VD‑FTV 4.5L twin‑turbo diesel and the 3UR‑FE 5.7L petrol. In Toyota documentation it’s described as the Manifold Absolute Pressure or “boost” pressure sensor and is mounted on or near the intake manifold/charge pipe. So yes — a MAP sensor is relevant and used on the 2019-toyota-land-cruiser map-sensor.

What’s its job? The MAP sensor measures absolute pressure inside the intake manifold (vacuum on the petrol, boost on the diesel). The engine ECU uses that data to calculate engine load, fuel quantity, ignition timing (petrol), turbo control (diesel), EGR operation and altitude compensation. On the 1VD‑FTV it’s critical for correct boost and smoke control, DPF management and smooth drivability. On the 3UR‑FE it works alongside the MAF to validate airflow and keep fuelling crisp during rapid throttle changes. If the signal goes skew‑whiff, the ECU can log P0106/P0107/P0108, drop power and chew through more fuel than it should.

For servicing, the 2019 Toyota Land Cruiser map sensor isn’t a routine replacement item, but it does deserve a regular check. On the diesel in particular, oily vapour and EGR soot can gum up the pressure port. During scheduled services, a quick visual inspection and a gentle clean of the sensor port with electronics‑safe cleaner (never poke it with wire) helps. Make sure the O‑ring seals properly and the connector pins are clean and tight. If live data shows implausible kPa versus barometric pressure, or there are boost control complaints, test the sensor before replacing. When a swap is needed, use a quality OE‑equivalent sensor, refit with care, and clear any fault codes while checking freeze‑frame data to confirm the fix.

• Common signs of trouble: sluggish performance, black smoke (diesel), rough idle, higher fuel use, or limp mode with MAP‑related DTCs.
• Good practice: check the MAP reading in key‑on/engine‑off, it should be close to local barometric pressure.
• Handy tip: after intake/EGR cleaning, recheck MAP plausibility and hose/connector integrity.

FAQs

Does the 2019 Land Cruiser have a MAP sensor or just a MAF?
Yes, it has both. Toyota service literature for the J200 specifies a manifold absolute pressure sensor on the petrol 3UR‑FE and the diesel 1VD‑FTV. The ECU uses MAP and MAF together for accurate load calculation and diagnostics.

Where is the MAP sensor located on the 2019 model?
It’s mounted on or near the intake manifold/charge pipe. On the diesel, it’s close to the EGR/boost plumbing, on the petrol, near the intake manifold by the throttle body. Look for a small, two‑bolt sensor with a vacuum/boost port and a 3‑pin connector.

Can a dirty MAP sensor cause DPF or boost issues on the diesel?
It can. A fouled MAP sensor skews boost/load readings, which can affect turbo control and regeneration strategy. If the diesel’s feeling flat or regenerations seem off, check and clean the MAP sensor port before chasing more complex faults.