Parts for your 2020 Suzuki Splash-Map sensor

2020 Suzuki Splash MAP sensor — what it is, where it lives, and how to look after it

Based on factory material for the Suzuki Splash/Opel Agila B platform and its K10B/K12B petrol engines — including the Suzuki Splash (RB) and Maruti Ritz service manuals (Engine Control System sections), plus trade data from Autodata and Haynes Pro — this model uses a manifold absolute pressure (MAP) sensor. Those sources list MAP-related diagnostics (P0105–P0108) and show the sensor mounted on or near the intake manifold. So for a 2020-registered Splash, a MAP sensor is very much relevant and fitted.

The MAP sensor is the little pressure sentry that tells the engine control module how much vacuum or pressure is in the intake manifold. Paired with intake air temperature and engine speed, it helps the ECU work out how much fuel to inject and how much spark advance to run, keeping the 1.0–1.2 litre engines smooth and efficient around town and on the open road.

When it’s healthy, drivers get clean starts, tidy idle, decent economy and crisp throttle. When it’s grumpy, it can make the Splash feel flat or thirsty. Common clues include:

• Rough idle, hesitation, or a lack of go under load
• Higher fuel use and the odd puff of black smoke on accel
• Check engine light with codes like P0105–P0108, sometimes P0171/P0172

There’s no set replacement interval, but it’s smart to give it a look during regular servicing — especially if the car does lots of short trips. Oil mist from the PCV system can film over the sensing port. If cleaning is needed, use proper electronics-safe cleaner and avoid soaking the sensor, never poke the port with anything sharp.

1. Key off, let the engine cool, and unplug the 3‑pin connector.
2. Undo the fixing screw(s), lift the sensor straight out, and check the O‑ring. Replace the seal if it’s flattened or cracked.
3. If there’s a short vacuum hose type, make sure the hose isn’t split or soft.
4. Refit, nip the fasteners to snug (don’t over-tighten), reconnect, clear codes, and let the ECU relearn with a warm idle and a short drive cycle.

Genuine or quality aftermarket sensors work well on these engines. During intake or throttle-body cleaning, avoid blasting solvent directly into the MAP port, and keep the connector clean and tight. A few simple checks keep the Splash running sweet and save a few dollars at the bowser.

Popular questions

Where is the MAP sensor on a 2020 Suzuki Splash?
It’s typically mounted on the intake manifold near the throttle body, with a single O‑ring seal and a 3‑pin electrical connector. Some variants use a short vacuum stub, others bolt directly into the manifold.

Can a faulty MAP sensor be cleaned or should it be replaced?
Light contamination can often be cleaned with electronics-safe cleaner, taking care not to flood the sensor. If readings are erratic, the port is oil-soaked, or codes return quickly, replacement is the reliable fix.

What fault codes point to a MAP sensor issue on a Splash?
Common ones are P0105 (MAP/Baro circuit), P0106 (range/performance), P0107 (low input) and P0108 (high input). You may also see mixture codes like P0171 or P0172 when the MAP reading misleads fuelling.