Parts for your 2023 Mitsubishi Asx-Map sensor

2023 Mitsubishi ASX MAP sensor: what it does and how to look after it

Based on technical documentation, the 2023 Mitsubishi ASX does use a MAP (Manifold Absolute Pressure) sensor. The Mitsubishi Motors ASX/RVR workshop manual for the GA-series models lists a MAP sensor in the engine control system for the 2.0-litre 4B11 petrol, and the Mitsubishi ASA parts catalogue shows a manifold pressure sensor used on ASX applications. For the European 2023 ASX (the Renault-sourced model), Renault powertrain service information for the TCe turbo engines also specifies an intake manifold pressure sensor for load and boost control. Standard OBD-II diagnostics for these vehicles include MAP-related DTCs (such as P0106–P0108), further confirming fitment.

On the 2023 ASX, the MAP sensor helps the ECU figure out how hard the engine’s working by measuring absolute pressure in the intake manifold. That pressure reading, combined with intake air temperature and engine speed, lets the ECU set fuelling and ignition so the ASX runs smoothly, sips fuel sensibly, and keeps emissions in check. On turbocharged variants (in the Euro rebadged model), it also keeps tabs on boost. On the 2.0-litre non-turbo sold in Australia and New Zealand, the MAP reading is key for load calculation and quick transient response even where a MAF sensor is also present.

It’s largely a fit-and-forget item, but when a MAP sensor goes off song the ASX can feel doughy off the line, idle roughly, use more petrol than usual, or flick a check engine light. Under the bonnet checks during regular servicing should include a quick look at the MAP sensor and its connector. If fitted via a short hose, make sure the hose isn’t split, oily, or loose. For direct-to-manifold sensors, confirm the mounting is snug and the O-ring isn’t perished.

If cleaning is needed, a dedicated MAF/MAP-safe electronics cleaner is the go—never scrape the sensing element or drown it in general-purpose solvents. Let it dry completely before reinstalling. Replacement is straightforward: disconnect the battery, unplug the connector, undo the retaining fastener(s), swap the sensor, lightly lube a new O-ring if specified, then refit and torque to the service manual spec. After replacement, clearing any stored DTCs and taking a short drive helps the ECU adapt. For owners chasing peak reliability over big kilometres, proactively replacing the MAP sensor around the high-mileage mark, or when drivability symptoms and fault codes point to it, is a sensible, low-fuss job that keeps the ASX feeling crisp.

• Common symptoms of a dodgy MAP: rough idle, sluggish throttle, higher fuel use, black smoke, and fault codes P0106–P0108.
• Quick tips: keep connectors clean and dry, check hoses/O-rings, use the right cleaner, and scan for codes before guessing.

Popular questions

Where is the MAP sensor on a 2023 Mitsubishi ASX?
On the Aussie/NZ 2.0-litre, it’s typically mounted on or near the intake manifold, secured with a small bolt and a plug-in connector. On the Euro 2023 ASX with TCe turbo engines, it’s also on the intake manifold, positioned to read manifold pressure directly for precise load and boost control.

Pop the bonnet and trace the intake manifold runners, the sensor sits on the plenum area, with a small electrical connector leading into it.

What are the signs the MAP sensor needs attention?
Owners may notice a rough idle, flat spots, poor fuel economy, or the check engine light. Scan tools often show MAP-related codes like P0106, P0107, or P0108. If a quick visual check reveals a cracked hose, oily connector, or loose mounting, fix that first—it can mimic sensor failure.

If cleaning and basic checks don’t sort it, a new sensor usually restores clean throttle response and normal fuel use.

Does the 2023 ASX have both MAF and MAP sensors?
Many ASX variants run a MAP sensor, and some naturally aspirated versions also use a MAF for primary airflow measurement. The ECU blends inputs to keep fuelling spot on. Turbocharged Euro models rely heavily on the MAP for boost and load control.

Either way, if the MAP reading goes out of whack, drivability suffers—so it’s worth keeping it in good nick.