Parts for your 2014 Subaru Xv-Map sensor

2014 Subaru XV MAP sensor — what it does, and how to look after it

The 2014 Subaru XV is fitted with a Manifold Absolute Pressure (MAP) sensor. This isn’t guesswork: Subaru’s factory service manual for the XV/Impreza GP/GJ platform describes the MAP sensor as an ECM input for load calculation and altitude correction, the official Subaru DTC list includes MAP/Baro faults such as P0106–P0108 for this model, and Subaru parts catalogues for the FB20 2.0‑litre engine list a “Manifold Absolute Pressure Sensor” as a serviceable item.

• Subaru XV/Impreza (GP/GJ, 2012–2016) Service Manual: Engine/Diagnostics — ECM Inputs and DTC P0106–P0108
• Subaru Technical Information System (TechInfo) — Engine control overview for FB20
• Subaru parts catalogues — Manifold Absolute Pressure Sensor, FB20 (2014 XV)

On the 2014 XV, the MAP sensor reads the absolute pressure inside the intake manifold. The engine computer blends this signal with inputs from the MAF sensor, throttle position, and engine speed to work out engine load. That helps with fueling, ignition timing, idle quality, EGR monitoring, AVCS behaviour, and altitude compensation — handy when driving from sea level up to the ski fields.

It’s a compact, three‑pin sensor mounted to the intake manifold, sealed by an O‑ring. Unlike the MAF, a MAP sensor generally doesn’t need routine cleaning. As part of normal servicing, it’s smart to:

• Inspect the connector and wiring for corrosion, chafing, or a loose fit.
• Check the sensor’s O‑ring for hardening or cracks and replace if weeping.
• Glance at live data (Key‑On, Engine‑Off) — the MAP should read close to local barometric pressure, big outliers point to a fault.

Typical fault signs include hard starting, rough idle, flat spots, sooty exhaust, poor fuel economy, and the check engine light with codes like P0106, P0107, or P0108. Before replacement, rule out vacuum leaks and intake gasket issues, as they’ll skew manifold pressure readings and mimic a bad sensor.

Replacement is straightforward: remove the engine cover, unplug the connector, undo the small retaining screws/bolts, swap in the new sensor with a fresh O‑ring, and click the connector home. There’s no special relearn on most FB20s, a short drive cycle will let trims settle. Avoid solvents or compressed air inside the sensor port — if it’s contaminated with oil mist, replace rather than “deep‑clean”.

There’s no fixed replacement interval, consider a preventative check every 60,000–80,000 km alongside air‑filter and throttle‑body inspections. Catching a lazy MAP early keeps the XV’s drivability crisp and the catalytic converter happy.

Popular questions about the 2014 Subaru XV MAP sensor

Does the 2014 Subaru XV have both a MAF and a MAP sensor?
Yes. The FB20‑powered XV uses a MAF sensor in the intake duct for primary airflow measurement and a MAP sensor on the intake manifold. The ECU uses both signals to refine load calculation, improve throttle response, and adjust for altitude and transient conditions.

Where is the MAP sensor on a 2014 XV, and how hard is it to replace?
It’s mounted on the intake manifold near the throttle body, secured with small fasteners and a three‑pin connector. Access is under the bonnet with basic hand tools. Most home mechanics can swap it in 10–20 minutes. Aftermarket sensors typically run around AUD/NZD $80–$180, genuine parts are often higher.

Is it safe to drive with a faulty MAP sensor?
The car will usually run, but it may go rich, stumble, or lack power. Prolonged driving with incorrect fueling risks catalyst damage and higher fuel costs. If the light’s on with a MAP code and the car feels off, it’s best to diagnose and fix it sooner rather than later.