Parts for your 2002 Daihatsu Gran move-Map sensor

2002 Daihatsu Gran Move MAP sensor — what it does and how to look after it

Yes, the 2002 Daihatsu Gran Move runs a MAP sensor. Technical references that confirm fitment include the Daihatsu G30x Gran Move/Pyzar EFI diagnostics manual (covering HD-E and K3-VE engines), the Daihatsu global electronic parts catalogue for G303/G311 models listing a Denso manifold absolute pressure sensor, and workshop data sets such as Autodata and Bosch ESI[tronic] which show a three‑wire MAP sensor with 5V reference, signal and earth on these engines.

On this model, the MAP sensor is the little brain that reads intake manifold pressure so the ECU can figure out engine load. From there it trims fuel delivery, sets ignition timing, and keeps idle neat as a pin. It also helps the ECU compensate for altitude and barometric swings — handy whether it’s a quick run to the shops or a weekend up in the hills.

Depending on engine code and market, the sensor is mounted on the intake manifold or on a small bracket with a short vacuum hose to the manifold. Either way, it’s a solid-state Denso unit with no moving parts, so failures are uncommon. When they do play up, it’s often not the electronics but a split vacuum hose, oil contamination in the port, or a crusty connector under the bonnet.

As part of servicing of your 2002 Daihatsu Gran Move map-sensor, it’s worth a quick look each service: check the vacuum hose for cracks, make sure the connector pins are clean and tight, and clear any oil mist from the sensor port with electronics-safe cleaner. No need to drench it — a light spray and a gentle blow out is enough.

Replacement is straightforward with a basic spanner set. Power off, unplug, swap, and torque the mounting screws snugly (don’t overcook them into the alloy). After replacement, clear any stored fault codes and let the ECU relearn by warming the engine fully and letting it idle a few minutes. A quick scan-tool check at key-on/engine-off should show barometric pressure around 100 kPa at sea level, at idle you’ll typically see 28–40 kPa depending on condition.

Common telltales of a crook MAP on a Gran Move include:

• Rough idle, hesitation or flat spots
• Higher fuel use and a sooty exhaust
• Check Engine Light with codes like P0105–P0108

Stick with quality Denso-spec replacements and the Gran Move will keep running sweet and frugal for many more kilometres.

Where is the MAP sensor on a 2002 Gran Move?
It’s typically on the intake manifold near the throttle body, or on a small bracket with a short vacuum hose to the manifold (varies with HD‑E vs K3‑VE engines). Look for a three‑pin plug and a small pressure port or hose nipple.

Can the MAP sensor be cleaned, or should it be replaced?
If readings are jumpy due to oil mist or a dirty port, a light clean with electronics-safe cleaner can restore it. If the sensor shows incorrect voltage at rest or throws repeat codes (P0106–P0108) after hose and connector checks, replacement is the go.

What symptoms point to a failing MAP on a Gran Move?
Hard starting, rough idle, sluggish pull, higher fuel consumption, and a Check Engine Light are typical. A scan showing implausible kPa at key-on/engine-off or no change with throttle usually seals the diagnosis.