Parts for your 2020 Nissan Serena-Map sensor

2020 Nissan Serena MAP sensor: fitted, what it does, and how to look after it

Based on Nissan factory service information for the C27 Serena (Engine Control/EC section) and global Nissan parts listings for the C27 platform, the 2020 Nissan Serena—both the MR20DD S-HYBRID and the e-POWER variants—uses a Manifold Absolute Pressure (MAP) sensor, often labelled by Nissan as the Intake Manifold Pressure sensor. These technical sources identify it as a core input for the engine control module.

On the 2020 Serena, the MAP sensor reads the absolute pressure inside the intake manifold so the ECU can calculate engine load. That lets the Serena meter fuel and ignition timing accurately, manage purge and EGR flow, and adjust to changes in altitude or weather. Even though the Serena also uses a mass airflow (MAF) sensor, the MAP signal sharpens transient response (like quick stabs of the throttle) and serves as a reliable fallback if the MAF reading goes off. For the S-HYBRID, steady manifold pressure readings help keep start–stop and electric assist silky. On e-POWER models, the MAP data helps the petrol engine run the generator efficiently and quietly under varying loads.

Routine maintenance is pretty straightforward. At regular servicing (every 20,000 km is a good rhythm in Aussie and Kiwi conditions), a tech should:

• Scan live data: with key on/engine off, MAP should be close to local barometric pressure, at hot idle, expect a lower kPa due to vacuum.
• Inspect the connector and wiring for heat, dust, or moisture ingress under the bonnet.
• Check the sensor’s O-ring/seal for hardening or nicks, replace if it looks tired.

If contamination is suspected, a gentle clean with electronics-safe sensor cleaner is usually fine—avoid harsh throttle-body or brake cleaners. Let it dry fully before refitting. Where a hose-fed remote sensor is used, make sure the vacuum hose isn’t split or soft.

Typical warning signs include a check engine lamp, doughy throttle response, rough idle, poor fuel economy, or hard starting. Common fault codes are P0106, P0107, and P0108. If the sensor fails or readings are clearly out of spec, replacement is simple: disconnect the battery negative, unplug the connector, remove the retaining fastener, swap the unit and seal, then clear codes and perform an idle/accelerator pedal learn if the scan tool requests it. Sticking with a genuine or OEM-quality MAP keeps the Serena running sweet and saves chasing ghost faults down the track.

• Pro tip: after installation, verify MAP tracks barometric pressure and that calculated load and fuel trims look sensible on a short road test.

Popular questions about the 2020 Nissan Serena MAP sensor

Does the 2020 Serena have a MAP sensor or just a MAF?
It has both. Nissan uses a MAF for primary airflow measurement and a MAP (intake manifold pressure) sensor for load calculation support, transient response, altitude correction, and OBD diagnostics. That combo helps drivability and reliability on both S-HYBRID and e-POWER variants.

What fault codes point to a bad MAP sensor on a Serena?
The usual suspects are P0106 (MAP/Baro range–performance), P0107 (low input), and P0108 (high input). You may also see related mixture or EGR codes. Always confirm with live data, power/ground checks, and a quick barometric comparison before condemning the sensor.

Can the MAP sensor be cleaned, or should it be replaced?
Light grime can often be cleaned with electronics-safe sensor cleaner. If the reading is erratic, the seal is damaged, or there’s internal failure, replacement is the go. After refit, clear codes and confirm stable kPa readings at KOEO and a healthy vacuum at idle.