Parts for your 2022 Mitsubishi Asx-Map sensor

2022 Mitsubishi ASX MAP Sensor: What It Does and How to Look After It

According to Mitsubishi technical references — the Mitsubishi Motors Service Manual for RVR/ASX/Outlander Sport (engine control section, 2020–2022) and the Mitsubishi ASA electronic parts catalogue — the 2022 Mitsubishi ASX with the 2.0L MIVEC petrol engine is fitted with a Manifold Absolute Pressure (MAP) sensor mounted on the intake manifold. The factory diagnostics also list DTCs P0106–P0108 for the MAP circuit, confirming its presence and role.

The MAP sensor reads the absolute pressure inside the intake manifold. The engine control unit uses that reading to work out engine load, then trims fuel, ignition timing, EGR operation and evaporative purge. On the 2022 ASX it works alongside the MAF sensor: the MAP provides fast transient data and barometric correction, and it also acts as a backup input (speed–density) if the MAF signal goes walkabout. That combo keeps throttle response tidy, fuel economy on point, and emissions compliant across Aussie and Kiwi conditions, from sea level to mountain passes.

There’s no fixed replacement interval for the MAP sensor, but it’s smart to give it a look during regular servicing — say every 20,000–30,000 km. Common signs it’s unhappy include a rough idle, flat spots, higher fuel use, sluggish performance, and a check engine light with P0106, P0107 or P0108. A quick scan of live data helps: key-on engine-off should show around local barometric pressure (about 101 kPa at sea level), and at warm idle you’ll typically see 25–40 kPa on a healthy, naturally aspirated ASX.

• Inspect the connector and loom for corrosion or damage, make sure the plug seats firmly.
• Check the sensor’s O-ring for hardening or nicks to avoid vacuum leaks.
• If cleaning is needed, use electronics-safe, non-residue spray only, don’t poke the sensing port.
• For engines with a short vacuum stub or passage to the sensor, ensure it’s not carboned up.
• When replacing, use light oil on the new O-ring, snug the fasteners to small bolt spec (around 8–10 Nm), and avoid over-tightening into plastic.
• Clear codes and let the ECU relearn trims with a short mixed drive, it’ll settle quickly.

Looked after, the MAP sensor is a low-fuss item that quietly keeps the ASX running sweet, sipping less fuel and pulling cleanly through the revs.

Does the 2022 ASX have a MAP sensor or just a MAF?

It has both. The MAF measures incoming air mass, while the MAP tracks manifold pressure for load calculation, barometric correction and diagnostics. Using both gives better accuracy and reliability.

How often should the MAP sensor be replaced?

There’s no scheduled replacement. Replace only if faulty. During routine services, inspect the connector and O-ring, and clean gently if contamination is suspected.

Can you drive with a faulty MAP sensor?

You can often limp along, but expect poor fuel economy, rough running and reduced power. It’s best to diagnose and fix promptly to avoid catalyst or emissions issues.