Parts for your 2002 Suzuki Jimny-Map sensor

2002 Suzuki Jimny MAP sensor — fitted and worth looking after

Drawing on technical references including the Suzuki Jimny (JB33/JB43, 1998–2004) Service Manual engine management section, the Suzuki Electronic Parts Catalogue for G13BB and M13A variants, Denso’s sensor catalogue, and Autodata system diagrams, the 2002 Suzuki Jimny is confirmed to use a Manifold Absolute Pressure (MAP) sensor. The Jimny runs a speed‑density fuel strategy rather than a hot‑wire MAF, so the MAP sensor is a key input for the ECU on both the late G13BB and early M13A engines used in 2002.

The MAP sensor measures intake manifold pressure so the ECU can figure out engine load, then dial in the right amount of fuel and ignition timing. It also helps with altitude compensation and stable idle, especially when the A/C kicks in or when crawling off‑road. In the Jimny, it’s typically mounted on or near the intake manifold plenum with a vacuum port, some G13BB setups place the sensor remotely and feed it via a short hose.

When the MAP sensor goes out of whack, the little Suzy will often feel doughy off the line, drink more fuel than usual, or throw a check‑engine light.

• Typical symptoms: rough idle, flat spots on throttle, hard starting, black smoke, or codes like P0105–P0108.
• Quick checks: look for split or oil‑soaked vacuum hoses (where fitted), a perished O‑ring, loose connector pins, or corrosion in the plug.

Service advice is straightforward. The MAP sensor isn’t a scheduled replacement item, but it benefits from inspection every 20,000–30,000 km, especially if the Jimny sees dusty tracks. If contamination is suspected, a light mist of electronics‑safe cleaner on the port (avoid soaking and never poke the diaphragm) can help. Confirm the 5 V reference, good ground, and a smooth signal change with key‑on and gentle throttle. If fault codes persist or readings are unstable, replacement is the go. Choose a quality unit that matches the Jimny’s calibration (Denso/NTK equivalents listed for the JB33/JB43), and fit a fresh O‑ring. It’s a simple under‑bonnet job: unplug, remove the screws, swap the sensor, and snug the fasteners. Clearing stored codes and taking the vehicle for a short relearn drive will let the ECU settle trims. Look after the MAP sensor and the 2002 Jimny will keep its tidy throttle response and sensible fuel use.

Popular questions

Where is the MAP sensor on a 2002 Suzuki Jimny?
On most 2002 Jimnys it sits on the intake manifold plenum near the throttle body, secured with small screws and sealed by an O‑ring. Some G13BB versions mount the sensor remotely on the firewall or a bracket and connect it to the manifold with a short vacuum hose.

What fault codes point to a bad MAP sensor?
Common codes include P0105 (MAP circuit range/performance), P0106 (MAP range/performance), P0107 (low input) and P0108 (high input). These often arrive with symptoms like rich running, poor economy, or a lack of grunt.

Does the 2002 Jimny also have a MAF sensor?
No. The 2002 Jimny’s engine management uses a speed‑density setup that relies on the MAP sensor, intake air temp, and RPM to calculate airflow. There isn’t a hot‑wire MAF in the air intake on these models.