Parts for your 2016 Holden Barina-Camshaft sensor

2016 Holden Barina camshaft sensor — what it is, what it does, and when to sort it

On the 2016 Holden Barina (TM series, 1.6‑litre petrol), a camshaft position sensor is absolutely fitted and relevant. This is confirmed by Holden/GM Global Service Information for TM Barina engine controls (which specifies camshaft position sensing, related DTCs P0340–P0344, and synchronisation strategy), independent workshop databases such as Autodata and Bosch ESI[tronic], and major parts catalogues listing direct‑fit camshaft sensors for the 2016 Barina. Modern sequential injection and variable valve timing on these engines rely on the cam sensor to run correctly.

The camshaft sensor’s job is to tell the engine control module exactly where the cam(s) are, so it can fire the injectors and spark at the right moment and manage valve timing. That means faster starts, smoother idle, better fuel economy, and proper grunt under load. On some Barina variants there are two sensors (intake and exhaust) mounted on the cam cover.

• Typical signs of a dodgy cam sensor: hard starting or no start, rough idle, flat spots, poor fuel use, limp mode, and a check‑engine light with codes like P0340/P0341.
• It’s not a scheduled service item, but it should be checked if there are drivability issues or relevant fault codes.

Good servicing habits help the sensor live a long life. Keep oil changes regular (old, sludgy oil can upset cam timing and contaminate sensor areas), and inspect the sensor connector and harness under the bonnet for oil wicking or brittle wiring. If the engine has had rocker cover leaks, clean up any residue around the sensor.

1. Replacement basics: disconnect the battery negative, unplug the sensor, remove its small retaining bolt, and wiggle the sensor free.
2. Lightly oil the new O‑ring, seat the new unit, and torque the bolt to spec (use a 1/4‑inch drive and don’t overdo it).
3. Plug in, clear codes, and take a short drive so the ECU can relearn cam/crank correlation if required.

If a new sensor doesn’t fix the issue, look next at wiring continuity, timing chain stretch, cam phasers, or the crank sensor. Use quality OEM‑equivalent parts to avoid nuisance faults and keep the Barina happy on Aussie and Kiwi roads.

FAQs

Does a 2016 Barina have one or two camshaft sensors?
Most 2016 Barina 1.6‑litre engines use camshaft sensing, and some variants run two sensors—one for the intake cam and one for the exhaust cam—mounted on the cam cover. A quick visual under the bonnet or a check against the VIN in a parts catalogue will confirm the exact setup.

What fault codes point to a bad camshaft sensor on a Barina?
Common diagnostic trouble codes include P0340 (camshaft position circuit) and P0341 (camshaft position performance). Intermittent wiring faults or oil contamination can mimic a failed sensor, so it’s worth inspecting the connector and loom before replacing parts.

Is it safe to drive with a failing camshaft sensor?
It may run, but starting can be hit‑and‑miss and the engine can drop into limp mode, which isn’t ideal for safety or the health of the catalytic converter. Best practice is to diagnose and repair promptly to avoid being stranded.