Parts for your 2006 Toyota Vitz|yaris-Map sensor

2006 Toyota Vitz/Yaris MAP Sensor: What It Does and How to Look After It

Yes, the 2006 Toyota Vitz/Yaris uses a MAP (Manifold Absolute Pressure) sensor. Toyota’s repair manual for the XP90 series (2005–2010) and the Toyota Electronic Parts Catalogue list a manifold pressure sensor (e.g., Toyota p/n 89420‑xxxxx) across common engines of the era, including 1KR‑FE (1.0 L), 2SZ‑FE (1.3 L) and 1NZ‑FE (1.5 L). The diagnostic section in the factory manual also includes MAP-related DTCs (P0105–P0108), and the component location shows the sensor mounted on the intake manifold. On some variants (notably 1KR‑FE) the MAP is the primary load sensor, on others (like many 1NZ‑FE cars) it works alongside a MAF sensor for finer control and as a plausibility/backup input.

On a 2006 Vitz/Yaris, the MAP sensor measures the absolute pressure inside the intake manifold so the ECU can figure out how much air’s going into the engine. With that, it dials in fuelling, ignition timing and idle control, and helps manage systems like VVT and EGR. If the reading goes skew-whiff, owners might notice rough idle, flat spots on take-off, higher fuel use, or a check engine light. Typical fault codes include P0105 (MAP circuit range/performance), P0106 (MAP circuit range/performance), P0107 (low input) and P0108 (high input).

There’s no scheduled replacement interval for the MAP sensor, it’s a solid-state part that usually lasts years. Still, during servicing it’s smart to:

• Visually check the connector and wiring for corrosion, hardening or damage.
• Make sure the sensor’s O‑ring is intact and the mounting area on the manifold is clean and oil-free.
• If there’s oil mist or soot at the port, remove the sensor and gently clean the tip and port with an electronics-safe cleaner. Don’t poke it with tools.
• Refit with the O‑ring lightly lubricated, and nip the bolts to factory spec.

When replacing, go for quality OEM or reputable aftermarket. The ECU doesn’t need coding, clear codes, then let it idle warm for a few minutes and take a short, varied drive so trims settle. A quick sanity check with a scan tool helps: with the key on/engine off, MAP should read close to local barometric pressure, at hot idle it should drop notably. If readings are off and wiring checks out, it’s time for a new sensor.

Popular questions about the 2006 Toyota Vitz/Yaris MAP sensor

Does the 2006 Vitz/Yaris have a MAP or a MAF?
Most 2006 Vitz/Yaris models have a MAP sensor, and many 1.5 L 1NZ‑FE cars also run a MAF. The MAP is on the intake manifold, the MAF, if fitted, sits in the airbox duct. The ECU can use both for accuracy and diagnostics.

What are the signs of a failing MAP sensor on this model?
Rough idle, sluggish acceleration, higher fuel use, black smoke on rich running, and a check engine light. Fault codes commonly seen are P0105, P0106, P0107 and P0108.

Can a DIYer replace or clean the MAP sensor?
Absolutely. It’s usually one connector and a couple of bolts. Disconnect the battery, remove the sensor, clean with electronics-safe spray if it’s just dirty, or swap in a new unit. Refit the O‑ring carefully, clear codes and go for a short drive to let the ECU relearn.