Parts for your 2018 Holden Barina-Crank angle sensor

2018 Holden Barina crank-angle sensor (crankshaft position sensor)

Yes, the 2018 Holden Barina (TM series, T300 platform) uses a crank-angle sensor, commonly called the crankshaft position (CKP) sensor. This is confirmed by GM Global Service Information (SI) for the T300 Sonic/Barina platform under Engine Controls “Crankshaft Position Sensor Replacement,” the Holden Barina TM Workshop Manual, and the Holden Electronic Parts Catalogue which lists a “Sensor – Crankshaft Position (CKP)” for TM Barina engines. GM SI also documents related DTCs P0335–P0339 for CKP signal faults, further showing the part is fitted and critical to engine management.

The CKP sensor’s job is to track the crankshaft’s exact position and speed so the engine control module can fire the spark and inject fuel at the right moment. It also keeps the engine in sync with the cam sensor, which is why a crook CKP can cause hard starts, random stalls, or no-starts. Without a clean signal from this sensor, the Barina’s ECU simply can’t run the show.

There’s no fixed replacement interval for the Barina’s crank-angle sensor—it's a condition-based item. During regular servicing, it’s smart to check the sensor connector and loom for heat damage, oil contamination, or a loose fit at the mounting. Keep the area clean and dry, oil leaks around the front cover or bellhousing can eventually upset the signal.

• Common tell-tales: intermittent stalling, long cranks, misfires at idle, dead tacho blips, Check Engine Light with codes like P0335–P0339.
• If replacement’s needed: choose OEM-quality, disconnect the battery, fit the new sensor with the correct torque, and confirm the connector seal is seated.
• Afterwards: clear fault codes and have a workshop perform the GM “Crankshaft Position System Variation Learn” (relearn) using a scan tool, so timing and knock control are spot on.

Most DIYers can physically change a CKP on a Barina in under an hour if access is reasonable, but the relearn typically needs a capable scan tool. If the sensor has failed more than once, have the technician check for damaged tone wheels, wiring chafe near the engine mount, or voltage drop at grounds. A healthy battery and stable charging system also help keep the CKP signal squeaky clean.

Popular questions about the 2018 Holden Barina crank-angle sensor

Where is the crank-angle sensor located on a 2018 Barina?
The CKP sensor is typically mounted to the engine block facing a toothed reluctor on the crankshaft. On TM Barina variants it’s usually accessed low on the engine near the transmission bellhousing or front cover area. Exact position varies by engine variant, so a quick look-up in the Holden workshop manual or a torch under the bonnet will sort it.

What symptoms point to a failing crank-angle sensor on a Barina?
Common signs include hard starting, random stalling when warm, rough idle, a dead or jumpy tacho, and the Check Engine Light. Scanning often shows DTCs P0335–P0339. If the engine cranks but won’t fire, the CKP is high on the suspect list, especially if the cam sensor and fuel delivery check out.

Do I need a relearn after replacing the Barina’s crank-angle sensor?
Yes—GM recommends performing a Crankshaft Position System Variation Learn using a proper scan tool. This procedure helps the ECU precisely map crankshaft variations for accurate spark and knock control. Some cars will run without it, but drivability and fault-free operation are best when the relearn is completed.