Parts for your 2016 Mitsubishi Asx-Map sensor

2016 Mitsubishi ASX MAP sensor: what it does, where it fits, and how to look after it

Based on Mitsubishi’s factory documentation and parts catalogues, a MAP (Manifold Absolute Pressure) sensor is fitted to the 2016 Mitsubishi ASX. The Mitsubishi workshop manual for ASX/RVR/Outlander Sport (GA/CF series, Engine—Fuel/Engine Control) details diagnostic routines for the “intake air pressure (MAP) sensor” with DTCs such as P0106–P0108. Mitsubishi’s ASA electronic parts catalogue also lists a manifold pressure sensor for 2016 ASX petrol variants (4A9/4B1 engines) and a boost pressure/MAP sensor on the 1.6/1.8 Di‑D diesel, confirming the part’s relevance on this model year.

On the 2016 ASX, the MAP sensor is a small, hard‑working bit of kit that reads the absolute pressure inside the intake manifold. The engine computer uses this signal—alongside inputs like engine speed and temperature—to figure out engine load and calculate how much fuel to inject and when to spark. On diesel and turbo applications it also doubles as a boost sensor, helping manage turbo control and EGR behaviour. Even on naturally aspirated petrol versions, the MAP reading is key for crisp throttle response, decent fuel economy, and steady idle.

While MAP sensors aren’t a routine “replace by kilometres” item, they do appreciate a little care during regular servicing. If the car shows poor fuel economy, sluggish performance, rough idle, or the check engine light with codes like P0106/P0107/P0108, the MAP sensor and its vacuum source are worth a look. First step is always basics: check the wiring connector for corrosion or a loose fit, and inspect the manifold port and hose (if used) for splits, oil sludge, or carbon build‑up.

Light contamination can sometimes be sorted with an electronics‑safe sensor cleaner—never poke the sensing element with tools. If readings remain out of whack in live data (kPa not tracking barometric pressure with ignition on/engine off, or implausible load at idle), replacement is the go. The sensor typically mounts to the intake manifold with a small bolt and an O‑ring seal. Swap the O‑ring if it’s flattened or cracked, and nip the bolt up to factory spec—no gorilla torque needed. After replacement, clear codes and take a short drive so the ECU can relearn trims.

• Common signs of a crook MAP sensor: hard starting, surging, black smoke (diesel), high fuel use, or hesitation.
• Preventative tip: fix any vacuum leaks and keep the intake tract clean—oil mist and dust are the usual culprits.

Popular questions

Where is the MAP sensor on a 2016 Mitsubishi ASX?
It’s typically mounted on the intake manifold. On petrol versions it’s usually on the manifold plenum, on diesel models it may sit on the manifold or boost piping. Look for a small rectangular sensor with a plug and an O‑ring seal.

Can a dirty MAP sensor cause high fuel consumption?
Yes. If the sensor under‑reads pressure (thinks there’s less air than there is), the ECU can enrich fueling or mess up timing, leading to more fuel burnt and lazier performance. Cleaning or replacing a faulty sensor often restores economy.

Do I need to reprogram the ECU after replacing the MAP sensor?
No coding is normally required. Clear any fault codes, then drive so the ECU can relearn fuel trims. If issues persist, check for intake leaks, wiring faults, or other sensors skewing the data.