Parts for your 2002 Daihatsu Gran move-Camshaft sensor

2002 Daihatsu Gran Move camshaft-sensor – is it actually there?

Short answer: a standalone camshaft position sensor isn’t fitted to the 2002 Daihatsu Gran Move (also sold as the Pyzar in some markets). Daihatsu’s factory engine management for this model uses a distributor with an internal angle pickup to provide the engine control unit (ECU) with timing and cylinder-identification signals, rather than a separate camshaft sensor on the cylinder head.

This isn’t guesswork. Daihatsu workshop literature for the G303/G313 Gran Move/Pyzar series, along with common Autodata-style engine management diagrams, show the ECU receiving the “NE” (engine speed) and “G” (cam reference) signals from the distributor assembly. In these systems, the distributor’s built-in pickup (often a Hall or optical sensor) plays the role that a modern, separate camshaft sensor would fill. So while some scan tools may label a fault as a “cam sensor” issue, the physical part to check on the Gran Move is the distributor pickup and its wiring, not a standalone cam sensor.

Why Daihatsu went this way comes down to the era and engine architecture. The Gran Move’s SOHC EFI engines were designed around a conventional distributor ignition. It keeps the bill of materials down and integrates multiple timing functions in one housing. Only later distributorless and coil-on-plug setups split the job into distinct crank and cam sensors mounted on the block and head.

What owners should know under the bonnet:

• If a code like P0340 (often described as “camshaft position sensor circuit”) pops up, on this model it typically points to the distributor’s internal pickup, connector corrosion, loom damage, or, less commonly, ECU issues.
• Hard starting, random misfires, poor fuel economy, or the engine stalling when hot can all be signs of a weak distributor pickup signal.
• Maintenance-wise, keep the distributor plug clean and the loom secured away from heat. If the pickup fails, replacement is usually the distributor assembly or the pickup module inside it, depending on parts availability in AU/NZ.
• Don’t overlook basics: correct timing belt alignment and a healthy crankshaft signal are both critical for a clean “G” reference from the distributor.

Parts catalogues may list a cam sensor for other Daihatsu models of the era, but for the 2002 Gran Move the cam reference is generated in the distributor. That’s why a separate camshaft-sensor isn’t relevant on this vehicle.

Popular questions about the 2002 Daihatsu Gran Move camshaft-sensor

Does the 2002 Gran Move have a camshaft position sensor?
No separate one. The ECU gets its cam reference from the distributor’s internal pickup. If a scan tool flags a cam sensor fault, the diagnosis should focus on the distributor pickup, wiring, and connectors.

Where’s the cam signal on a Gran Move located?
Inside the distributor. The “G” signal is produced by the distributor’s angle sensor and fed to the ECU. There isn’t a standalone sensor on the cylinder head like on later coil-on-plug engines.

What fixes a P0340 on this model?
Common wins include cleaning and reseating the distributor connector, repairing loom damage near the distributor, and testing the pickup coil/module inside the distributor. If signal output is out of spec, replacement of the pickup or complete distributor is the usual remedy.