Parts for your 2000 Daihatsu Gran move-Oxygen sensor

2000 Daihatsu Gran Move Oxygen Sensor

Yes, the 2000 Daihatsu Gran Move is fitted with an oxygen sensor (HO2S). This is confirmed by Daihatsu’s factory service information for the G3-series Gran Move/Pyzar, the Daihatsu Electronic Parts Catalogue (EPC), and major aftermarket catalogues from NGK/NTK and Bosch, all of which list a heated oxygen sensor for this model year and engine range. Some markets show an upstream sensor only, others add a downstream unit after the catalytic converter for enhanced emissions monitoring.

The oxygen sensor sits in the exhaust and constantly measures how rich or lean the engine is running. The ECU uses that feedback to trim the fuel mix, helping the Gran Move run smoothly, sip less petrol, and keep emissions in check. When the sensor ages or gets contaminated, the ECU can’t fine‑tune as well, so fuel economy drops, the car may feel a bit doughy off the line, and the Check Engine light can pop on with codes like P0130–P0161.

As a rule of thumb, an OE oxygen sensor is a long-lived part, but by 150,000–200,000 km (or simply with age), response slows. Given the 2000 Gran Move’s age, many original sensors are well past their best. Replacing a tired sensor often restores crisp running and saves fuel.

Good servicing habits for the Gran Move’s oxygen sensor include:

• Fix any exhaust leaks ahead of the sensor and avoid silicone sealants that can poison the element.
• Keep the connector clean and clipped, heat-damaged wiring to the heater circuit is common.
• When removing, apply penetrating oil to the threads and work on a warm (not hot) exhaust. Fit a direct‑fit NTK, Denso, or Bosch unit and tighten to the service‑manual spec. Most new sensors come pre‑coated, only use sensor‑safe anti‑seize if specified by the manufacturer.
• After fitting, clear fault codes and confirm live data: on a narrowband upstream sensor you want quick voltage switching at warm idle and under light cruise.

If the Gran Move has both upstream and downstream sensors, replace the faulty one first. If the upstream is lazy, it’s worth doing it sooner rather than later—running rich can shorten the catalytic converter’s life and cost more down the track.

Popular questions about the 2000 Daihatsu Gran Move oxygen sensor

Does a 2000 Gran Move have one or two oxygen sensors?
Most AU/NZ Gran Move variants use one heated upstream sensor before the catalytic converter. Some compliance versions add a second sensor after the cat to monitor catalyst efficiency. The quickest way to check is to look for a second sensor bung after the cat or confirm by VIN in a parts catalogue.

How often should the oxygen sensor be replaced?
There’s no strict time-based interval, but many sensors lose sharpness around 150,000–200,000 km. On a 2000 vehicle, age alone is a factor, if fuel economy has slipped, the idle’s a bit rough, or there are O2-related fault codes, testing and likely replacement is smart maintenance.

Is it okay to drive with a faulty oxygen sensor?
You can usually drive short-term, but expect higher fuel use and the risk of damaging the catalytic converter if mixtures run rich. It’s best to fix it promptly to keep the Gran Move running sweet and to pass emissions checks.