Parts for your 2008 Holden Barina-Camshaft sensor

2008 Holden Barina Camshaft Sensor — What It Does and When to Replace It

Technical sources confirm the 2008 Holden Barina (TK series, 1.6L DOHC petrol) uses a camshaft position (CMP) sensor. The Holden Barina TK Workshop Manual and GM/Daewoo F16D3 engine documentation list CMP-related diagnostics (e.g., DTCs P0340/P0341), and major parts catalogues from OEM suppliers such as Delphi/ACDelco and Bosch specify a camshaft sensor for 2005–2011 Barina TK models. So yes — it’s fitted and very much part of the engine management on this model.

On the 2008 Barina, the camshaft sensor helps the ECU know exactly where the camshaft is in its rotation. That lets the car time fuel injection and spark properly, improving cold starts, fuel economy, and emissions. Even though the Barina’s 1.6 doesn’t rely on fancy variable valve timing, it still needs the CMP to run sequential injection and keep misfire detection accurate. When the sensor goes out of spec, drivers often cop a Check Engine light and the car may be hard to start, feel doughy off the mark, or use more fuel than it should.

There’s no scheduled maintenance for the cam sensor — it’s a fit-and-forget part — but it lives under the bonnet near the cam cover where heat and oil vapour are common, so checking the connector and wiring for brittleness or oil ingress during services is smart. If replacement’s needed, it’s a straightforward job for a competent home mechanic with basic tools.

• Common symptoms of a crook cam sensor:
  • Check Engine light with codes like P0340/P0341
  • Hard starting, rough idle, or stalling
  • Sluggish performance and higher fuel use

1. Disconnect the battery negative terminal.
2. Locate the sensor on the end of the cylinder head/cam cover and unplug the connector.
3. Remove the retaining bolt (usually 8–10 mm head or Torx) and withdraw the sensor.
4. Lightly oil the new O-ring, install the new sensor, and torque the bolt to about 8–10 Nm.
5. Reconnect the plug and battery, clear codes, and perform an idle learn if required (let it idle until warm, A/C off).

Go for an OEM-quality unit (Delphi/ACDelco, Bosch) and avoid cheapies that can give flaky signals. During routine servicing, a quick look for chafed wiring near the cam cover and keeping the area clean will help the sensor live a long life. If the light’s on and the Barina’s cranky to start, a fresh cam sensor and a code clear will usually have it back to its cheerful, zippy self.

Popular questions

Where is the camshaft sensor on a 2008 Holden Barina?
It’s mounted at the end of the cylinder head near the cam cover (timing end). You’ll see a small sensor with a single retaining bolt and a two- or three-pin electrical plug. Access is from the top under the bonnet.

What are the symptoms of a failing camshaft sensor on a Barina?
Typical signs include a Check Engine light with codes like P0340/P0341, hard starting, rough idle, stalling, sluggish acceleration, and poorer fuel economy. If those show up together, it’s worth scanning and testing the sensor circuit.

Is it safe to drive with a bad camshaft sensor?
It may run, but drivability can be ordinary and fuel use can climb. Prolonged driving isn’t ideal — get it diagnosed and sorted to avoid being stranded or masking other faults.