Parts for your 2011 Toyota Aurion-Map sensor

2011 Toyota Aurion MAP sensor: purpose, care and when to replace

Based on Toyota’s own technical literature, the 2011 Toyota Aurion (GSV40 series, 2GR‑FE V6) is fitted with a manifold absolute pressure (MAP) sensor. The Toyota Repair Manual for Aurion GSV40 (SFI System, “Manifold Absolute Pressure (Vacuum) Sensor – Operation/Diagnostics”), the Toyota Electronic Parts Catalogue (GSV40 listing “Sensor, Manifold Absolute Pressure”), and the Toyota Electrical Wiring Diagram for the 2GR‑FE (showing the MAP circuit to the ECM as VC–PIM–E2) all confirm its presence. So yes—this Aurion uses a MAP sensor (often written as a map-sensor) alongside the MAF sensor.

On this engine, the MAP sensor reads the absolute pressure inside the intake manifold and sends a voltage signal to the ECU. The ECU uses that signal to juggle fuelling and ignition timing, fine‑tune VVT operation, and monitor EGR flow and load during rapid throttle changes. Even though the Aurion runs a MAF as the primary load sensor, the MAP sensor is key for transient accuracy, knock avoidance, and OBD diagnostics.

When a MAP sensor goes out of whack, the Aurion may feel doughy off the line, burn more petrol than usual, idle roughly, or throw fault codes like P0106, P0107, or P0108. Under the bonnet you’ll find the MAP sensor mounted on the intake manifold near the throttle body, with a simple 3‑pin plug and a single retaining fastener.

There’s no fixed replacement interval in Toyota’s schedule, but it’s smart to check the MAP sensor during routine servicing—especially past 100,000 kilometres or if drivability changes. Usually, the sensor itself doesn’t need “cleaning” like a MAF. However, make sure the vacuum port isn’t gunked up and the O‑ring is pliable and sealing well. If replacement is needed, go for a quality OE‑equivalent unit (Denso/Toyota) so the calibration matches the ECU’s expectations.

• Switch ignition off and disconnect the battery if desired.
• Unplug the 3‑pin connector (look for good pin tension and no corrosion).
• Remove the retaining bolt and lift out the sensor.
• Inspect/replace the O‑ring, lightly lubricate, and seat the new sensor squarely.
• Reinstall the bolt snug to factory spec—don’t overtighten.
• Reconnect, clear any codes, and take a short drive so the ECU can relearn trims.

Sorted right, the Aurion’s MAP sensor helps keep the V6 smooth, efficient, and eager without nasty surprises on fuel use or emissions.

Does a 2011 Toyota Aurion have both a MAF and a MAP sensor?
Yes. The Aurion’s 2GR‑FE uses a MAF for primary airflow measurement and a MAP to track manifold pressure for fuelling trims, VVT control and onboard diagnostics. The two sensors work together for better response and reliability.

Where is the MAP sensor on a 2011 Aurion?
It’s on the intake manifold near the throttle body. Look for a compact sensor with a single bolt and a 3‑pin plug. If you’re standing at the front of the car with the bonnet up, it’s typically on top of the manifold where access is straightforward.

Is it safe to drive with a faulty MAP sensor?
Short trips might be possible, but it’s not ideal. A bad MAP reading can cause rich or lean running, higher fuel use, rough idle, and potential damage to the catalytic converters over time. Best to diagnose and sort it promptly.