Parts for your 2014 Daihatsu Bego-Crank angle sensor

2014 Daihatsu Bego crank-angle-sensor: fitted, what it does, and how to look after it

Yes, the 2014 Daihatsu Bego is fitted with a crank-angle sensor (also called a crankshaft position sensor). This is confirmed across factory technical references for the J200/J210 platform and 3SZ‑VE engine, including Daihatsu/Terios-Bego engine control system manuals and Toyota Rush (J200) SFI system repair documentation, which detail the NE (crankshaft position) signal and list the sensor in wiring diagrams and parts catalogues. It’s a core input to the ECU and absolutely relevant on this model year.

On a 2014 Bego, the crank-angle sensor tracks crankshaft speed and exact angle using a toothed reluctor on the crank. The ECU leans on that signal to time fuel injection and spark, sync with the cam sensor, manage idle, and detect misfires. If it drops out, there’s usually a no-start, sudden stall, or a rough, gutless run with the MIL glowing. Common OBD codes include P0335/P0336 for the crank circuit, and sometimes misfire codes when the signal turns sketchy.

While the sensor isn’t a routine “replace at X km” service item, it benefits from a bit of preventative attention during scheduled servicing:

• Inspect the connector and loom for oil saturation, hardened insulation, or chafing near the front of the engine.
• Check for oil leaks at the timing cover that might wick into the plug and disturb the signal.
• If doing front-end work (belts, crank pulley, timing cover), make sure the sensor face is clean and free of metallic debris.

Replacement isn’t a big drama for most workshops. Battery off, unplug the connector, remove the retaining bolt, ease the sensor out, and swap in a quality unit with a fresh O-ring. The sensor on the 3SZ‑VE is non-adjustable, so there’s no air-gap shimming—just seat it squarely, torque the bolt to spec per the workshop manual, and clear any stored codes. After refitting, a quick crank and live-data check for a steady RPM/NE signal on a scan tool is a good shout.

Owners often ask how long they last. In everyday Aussie and Kiwi conditions, they typically go the distance unless heat, oil leaks, or wiring grief cut their life short. If starting turns intermittent, idle gets lumpy, or it throws P0335, it’s time to test and likely replace—before it leaves anyone stranded at the servo.

• Where is the crank-angle sensor on a 2014 Daihatsu Bego?
  It’s mounted at the front of the engine on the timing chain cover, reading a toothed wheel on the crankshaft. From the front of the vehicle, look low on the right-hand side of the timing cover, behind the crank pulley area. Access often improves with undertray removal and good lighting.
• What are the symptoms and fault codes of a failing sensor?
  Expect hard starts or a no-start, random stalling, rough idle, and lack of power. The MIL usually lights up with P0335 (Crankshaft Position Sensor “A” Circuit) or P0336 (Range/Performance). Misfire codes can piggyback if the crank signal is unstable. Scan-tool live data will show erratic or missing RPM when cranking.
• Is it the same as the cam sensor, and should both be changed together?
  No, the crank-angle sensor tracks crank position and speed, while the cam sensor confirms cam phase. They work together but are separate parts. There’s no rule to replace both unless diagnostics show issues with each, test first, then replace the faulty unit with a quality sensor.