Parts for your 2000 Daihatsu Gran move-Map sensor

2000 Daihatsu Gran Move MAP sensor: what it does, where it lives, and how to keep it happy

Technical sources confirm the 2000 Daihatsu Gran Move runs a Denso speed–density EFI system that relies on a MAP (Manifold Absolute Pressure) sensor. The Daihatsu Pyzar/Gran Move Workshop Manual and Electrical Wiring Diagram for the M1xx series identify the MAP (often labelled PIM in Denso documentation) as a key ECU input, and common diagnostic references (e.g., Autodata model listings for the HC/HD-series petrol engines) note OBD-II fault codes P0105–P0108 specific to the MAP circuit. In short, this vehicle is MAP-sensor equipped and it’s central to how the ECU meters fuel and spark.

On the 2000 Gran Move, the MAP sensor measures intake manifold pressure so the ECU can calculate engine load. Paired with intake air temperature and RPM, it helps the ECU decide how much fuel to inject and when to fire the spark. When it’s healthy, cold starts are clean, throttle response is crisp, fuel economy stays tidy, and emissions are kept in check.

There’s no fixed replacement interval for the MAP sensor, but it’s smart to include it in routine servicing. Think of it as a “inspect and test” item every 12 months or 20,000 km, especially if the car does short trips or sees dusty roads.

• Common symptoms of a crook MAP sensor:
  • Sluggish take-off, poor fuel economy, rough idle or stalling after start
  • Black smoke or fuel smell, hesitation on hills
  • Engine light on with codes P0105–P0108
• Quick service tips under the bonnet:
  • Find the MAP on the firewall or intake area with a small vacuum hose to the manifold. Make sure that hose isn’t split, soft, or blocked.
  • Unplug the connector and check for green corrosion or loose pins. A dab of dielectric grease helps keep moisture out.
  • Don’t flood the sensor with cleaners. If needed, lightly clean the port and the hose, avoid spraying inside the sensor body.
  • Electrical check: verify a solid 5 V reference and ground, with key on/engine off, signal voltage is typically high, then it drops at idle.
• Replacement pointers:
  • Use a quality Denso-spec sensor for correct calibration. Fit the sealing grommet properly and snug the fastener—no gorilla-tightening.
  • Clear fault codes, then let the ECU relearn. A short idle period and a gentle drive cycle usually settles trims.

Because vacuum integrity matters, a perished hose can mimic a failed sensor. On these Gran Moves, fixing a simple hose leak often restores smooth running without replacing the MAP. When in doubt, a quick live-data check of MAP kPa against barometric pressure (engine off) is a handy sanity test.

Popular questions

Where is the MAP sensor on a 2000 Daihatsu Gran Move?
It’s typically mounted on the firewall or near the intake manifold with a short vacuum hose to the manifold and a three-pin electrical plug. Look just behind the engine bay’s intake side, it’s a small black Denso unit secured with one screw or bracket.

What are the signs the MAP sensor needs attention?
Owners usually notice rough idle, hard starts, flat spots on acceleration, higher fuel use, or the engine light with MAP-related codes. Always check the vacuum hose and connector first, they’re common, easy wins.

Does the Gran Move use a MAF instead of a MAP?
No—factory documentation for the M1xx Gran Move shows a speed–density system using a MAP sensor (PIM in Denso terms), not a hot-wire MAF. That’s why manifold vacuum leaks can affect fuelling so strongly on this model.