Parts for your 2019 Holden Commodore-Crank angle sensor

2019 Holden Commodore crank-angle-sensor (ZB) — what it does and how to look after it

Yes, the 2019 Holden Commodore (ZB) uses a crank-angle-sensor — it’s listed in Holden/GM Service Information (SI) for the ZB Commodore, and in the GM Global Aftersales Electronic Parts Catalogue for both the 2.0‑litre turbo four and 3.6‑litre V6 variants. In the factory literature it’s called the crankshaft position (CKP) sensor, which is the same thing as a “crank-angle-sensor”. The Opel Insignia B workshop manual (the ZB’s European twin) also specifies a CKP sensor and a post-replacement CKP variation relearn procedure. So, on a 2019 Commodore, a crank-angle-sensor is definitely fitted and required.

On the ZB Commodore, the crank-angle-sensor tracks the exact position and speed of the crankshaft so the ECU can fire the spark plugs, inject fuel, and manage variable valve timing with spot-on timing. No reliable CKP signal means poor running or a no‑start. It works hand-in-hand with the camshaft sensor to keep combustion events in sync, especially during cold starts and quick throttle changes.

As part of servicing your 2019 Holden Commodore crank-angle-sensor, there’s no set replacement interval — it’s a monitor-and-maintain item. During routine services, it’s smart to:

• Check the wiring and connector for heat damage, oil contamination, or broken retainers.
• Look for oil leaks that could wick into the connector at the back or side of the block.
• Scan for stored fault codes such as P0335–P0339 even if the dash light’s off.

Common warning signs include long cranking when hot, random stalling at traffic lights, misfires under load, dead tachometer on crank, and the MIL coming on. Because symptoms can mimic coil or fuel issues, confirm with scan data (crank RPM) and a proper code read before buying parts.

If replacement is needed, use an OE‑quality sensor and a fresh O‑ring. The CKP on these engines is mounted at the block near the crank trigger wheel and is usually accessed from underneath, so allow time to work safely on stands. Keep the area clean, route the harness exactly like factory, and torque the retaining bolt correctly. After fitting, a CKP variation relearn with a capable scan tool is recommended so the ECU can align its misfire and timing maps to the new signal. Skipping the relearn can leave a rough idle or a stored fault. If unsure, a trusted workshop can knock this over quickly.

• Where is the crank-angle-sensor on a 2019 Holden Commodore?

It’s mounted in the engine block next to the crankshaft’s reluctor (trigger) wheel. On both the 2.0‑litre turbo and 3.6‑litre V6, access is typically from underneath, near the transmission bellhousing area or lower block. Expect tight working space and heat shielding nearby.

• Does the crank-angle-sensor need programming after replacement?

You don’t program the sensor itself, but a CKP variation relearn via a compatible scan tool is recommended. This lets the ECU calibrate to the new signal for accurate misfire detection and ignition timing, helping avoid nuisance fault codes and rough running.

• What are the signs of a failing crank-angle-sensor on a ZB Commodore?

Hot‑start issues, intermittent stalling, uneven idle, misfires, no tach movement while cranking, and fault codes like P0335 are typical. Because these can overlap with coil or fuel faults, verify with scan data before replacing parts.