Parts for your 2015 Mitsubishi Lancer-Map sensor

2015 Mitsubishi Lancer MAP sensor: is it actually used?

For most 2015 Mitsubishi Lancer models sold in Australia and New Zealand with the naturally aspirated 2.0L (4B11) or 2.4L (4B12) engines, a separate MAP (manifold absolute pressure) sensor isn’t fitted or used for engine load calculation. These cars run a MAF (mass airflow) sensor in the intake snorkel and a barometric pressure sensor integrated into the ECU. That setup handles fuelling and timing without needing a standalone MAP on the manifold. This is documented in the Mitsubishi Lancer (CY/CZ) Service Manual, Group 13A – Multiport Fuel Injection, where the MAF-based system is specified for 4B11/4B12, and a manifold pressure sensor is listed only for turbocharged applications. The Mitsubishi ASA Electronic Parts Catalogue backs this up by listing a manifold pressure/boost sensor for 4B11T (Ralliart/Evolution X) and not for the non‑turbo 4B11/4B12.

Why didn’t Mitsubishi use a MAP on the non‑turbo 2015 Lancer? With a stable intake vacuum profile and no boost, a quality MAF sensor provides precise airflow data across driving conditions. The ECU blends MAF, throttle angle, O2 sensor feedback and its built‑in barometric reading to manage load, trimming fuelling on the fly. Fewer sensors mean fewer failure points and lower cost, which suits the naturally aspirated layout nicely. By contrast, the Ralliart and Evo X turbo variants do use a MAP (often called a boost or manifold pressure sensor) mounted on the intake manifold to read boost and manifold pressure directly—critical for turbo control and knock protection. If the car is one of those turbo models, a MAP sensor is absolutely part of the package and needs to be diagnosed and serviced like any other pressure sensor.

If an owner of a non‑turbo 2015 Lancer is chasing “MAP sensor” faults online, what they usually want to inspect is the MAF sensor near the airbox, plus common vacuum leak points, the PCV valve, intake ducting, and the throttle body. Typical airflow‑related fault codes on non‑turbo cars are MAF‑centric (e.g., P0101/P0102), while MAP‑circuit codes (e.g., P0106) are seen on the turbo models. Technical sources: Mitsubishi Lancer (CY/CZ) Service Manual 2008–2015, Group 13A, Mitsubishi ASA EPC for Lancer 2007–2017, Mitsubishi Evolution X/Ralliart 4B11T engine manual for boost pressure sensor use.

• Non‑turbo 2015 Lancer (4B11/4B12): No standalone MAP sensor, MAF + ECU barometric pressure used.
• Turbo 2015 Lancer (Ralliart/Evo X, 4B11T): Yes, MAP/boost sensor fitted on the intake manifold.

FAQs

Does a 2015 Mitsubishi Lancer have a MAP sensor?

On the common non‑turbo 2.0L and 2.4L models, no—there’s no separate MAP sensor. Those cars rely on a MAF sensor and the ECU’s barometric sensor. Turbo variants like the Ralliart and Evo X do have a MAP/boost sensor on the manifold.

Where is the MAP sensor located on a 2015 Lancer?

If it’s a turbo model, the MAP (boost) sensor is mounted on or near the intake manifold with a short pressure port into the plenum. On non‑turbo cars, owners often mistake the MAF for a MAP, the MAF is in the intake tube just after the airbox.

I’m getting rough running—should I replace the MAP sensor?

If the car is a non‑turbo Lancer, there isn’t a MAP to replace. Start with the MAF: inspect and gently clean the sensor element with proper MAF cleaner, check for intake leaks, perished hoses, and a sticky throttle body. On turbo models, MAP/boost sensor faults can trigger under‑ or over‑boost behaviour—verify with live data before replacing parts.