Parts for your 2012 Suzuki Splash-Map sensor

2012 Suzuki Splash MAP Sensor — Purpose, Service Tips, and Fitment

Based on technical literature, the 2012 Suzuki Splash is fitted with a MAP (Manifold Absolute Pressure) sensor on both petrol (K10B 1.0 and K12B 1.2) and DDiS 1.3 diesel variants. References include the Suzuki Splash/Ritz Workshop Manual (2011–2014) under Engine Control System, the Suzuki Electronic Parts Catalogue for MY2012 listing “Sensor, Manifold Absolute Pressure” for K10B/K12B and “Boost/MAP sensor” for D13A diesel, and Maruti Suzuki Ritz (K10B/K12B) service documentation identifying the MAP sensor on the intake manifold. These sources describe the MAP signal as essential for load calculation by the ECU.

The MAP sensor reads the absolute pressure in the intake manifold so the ECU can work out engine load and fuel the motor properly. On petrol Splashes, it’s a speed-density setup that uses MAP, intake air temp and RPM—no separate MAF sensor. On the diesel, the sensor also monitors boost pressure. A healthy MAP helps the little Splash pull cleanly through the revs, keeps fuel economy in check, and reduces emissions.

There’s no scheduled replacement interval, but it’s smart to treat the MAP sensor as a “inspect and clean if needed” item during regular servicing (every 60,000 km or whenever drivability changes). Under the bonnet, the petrol MAP sensor mounts on or near the intake manifold, on the diesel it’s on the manifold or charge pipe. Use an electronics-safe cleaner if there’s light oil vapour contamination, avoid harsh solvents. Let it dry fully, check the O-ring, and refit. If bolts are removed, tighten to the factory spec and avoid over-torquing the plastic housing.

• Typical symptoms of a dodgy MAP: rough idle, hard starting, gutless acceleration, higher fuel use, black smoke on diesel, and a check engine light with codes like P0106–P0108.
• Quick checks: at key-on/engine-off a scan tool should show around 100 kPa at sea level, at warm idle many petrol engines sit roughly 25–40 kPa.
• Replacement is straightforward: key off, unplug, remove the retaining screw, swap the sensor, and clear any fault codes. A short idle relearn drive helps the ECU settle.

For best results, owners should stick with genuine or reputable OEM-quality sensors and inspect the wiring and connector for corrosion or damaged pins before condemning the unit.

Popular questions about the 2012 Suzuki Splash MAP sensor

Where is the MAP sensor located?
On petrol K10B/K12B models it’s mounted on the intake manifold, typically at the top or rear section. On the DDiS diesel it’s fitted to the intake manifold or charge pipe where it reads boost. It’s a small plastic sensor with a multi-pin connector and an O-ring sealing into the manifold.

Can a dirty MAP sensor cause high fuel use or a failed WOF?
Yes. If the sensor reads low or sticks due to oil mist or contamination, the ECU can over-fuel or under-fuel. That can trigger poor economy, rough running, higher emissions, and a check engine light—potentially risking a WOF fail until it’s rectified.

Does the Splash also use a MAF sensor?
The petrol Splash relies on a MAP-based speed-density system rather than a separate MAF sensor. The diesel uses the MAP as a boost/pressure sensor. That’s why keeping the MAP signal clean and accurate is so important for these engines.