Parts for your 2000 Daihatsu Gran move-Throttle position sensors

2000 Daihatsu Gran Move Throttle Position Sensor (TPS)

Technical sources indicate the 2000 Daihatsu Gran Move is fitted with a throttle position sensor. The factory workshop literature for the G3-series Gran Move/Pyzar (EFI section) details TPS inspection and adjustment on the cable-operated throttle body, and Daihatsu’s electronic parts catalog (EPC) for G30# chassis lists a “Sensor, Throttle Position” as a serviceable item. These references confirm the TPS is relevant and used on 2000 petrol variants of the Gran Move.

The throttle position sensor on a 2000 Daihatsu Gran Move tells the engine control unit exactly how far the throttle is opened. It’s a simple but crucial Denso-style potentiometer mounted to the throttle body, tracking the throttle shaft as it moves under the cable. With that signal, the ECU can dial in fuelling and ignition timing, sharpen tip-in response, and coordinate idle control. On autos, the TPS input also helps with shift timing and kickdown behaviour, so a healthy sensor keeps the driveline feeling tidy around town and on the open road.

As part of routine servicing, the TPS deserves a quick check. A visual once-over under the bonnet for cracked connectors or loose mounting screws goes a long way. With a multimeter, a tech can verify a smooth voltage sweep from roughly closed-throttle to wide-open (typically about 0.5–4.5 V) with no dead spots. If the Gran Move idles roughly, hesitates on take-off, hunts at light throttle, or drinks more petrol than it should, the TPS is a prime suspect—especially if fault codes like P0120–P0123 pop up during diagnostics.

Replacement is straightforward and usually drama-free:

• Disconnect the battery, unplug the TPS, and mark its current position.
• Remove the two small screws, swap the sensor, and refit loosely so the slotted holes allow fine adjustment.
• Set closed-throttle voltage to spec with a multimeter (or align per workshop marks), tighten the screws, clear any codes, and road-test.

Many Gran Move throttle bodies allow minor TPS adjustment, getting that baseline right smooths idle, sharpens throttle response, and keeps shifts consistent on auto models. It’s also smart to check the throttle cable for free play, clean the throttle bore, and confirm good earths and loom condition. If the original sensor shows intermittent spikes, contamination, or worn tracks, fitting a quality replacement is cheap insurance for reliable, fuss-free motoring across Aussie and Kiwi roads.

Popular questions

Where is the TPS on a 2000 Daihatsu Gran Move?
It’s bolted to the side of the throttle body on the intake manifold, opposite the throttle cable pulley. The connector faces outwards, making it easy to test or replace without removing the throttle body.

What symptoms point to a failing TPS on a Gran Move?
Common signs include erratic idle, flat spots on light acceleration, poor fuel economy, harsh or late shifts on autos, and a check-engine light with TPS-related fault codes. A wobbly or non-linear voltage sweep during testing also gives the game away.

Does a new TPS need adjustment?
Often yes. The mounting slots allow fine tuning so closed-throttle voltage sits within spec. A quick multimeter check and tweak before tightening the screws helps the ECU learn correct throttle angles and keeps drivability sweet.