Parts for your 2018 Holden Captiva 7-Crank angle sensor

2018 Holden Captiva 7 Crank Angle Sensor (Crankshaft Position Sensor)

Based on technical references, the 2018 Holden Captiva 7 is fitted with a crank angle sensor (more commonly called a crankshaft position sensor, or CKP). The Holden/GM workshop manual for Captiva CG Series II (2016–2018) details the CKP sensor within Engine Controls, including diagnostics for DTCs P0335 and P0336. GM’s electronic parts catalogue and ACDelco listings also show a CKP sensor for both the 2.4‑litre petrol and 2.2‑litre turbo‑diesel variants. So yes—it’s relevant and used on this vehicle.

On a 2018 Captiva 7, the crank angle sensor keeps the ECU in the loop about exactly where the crankshaft is and how fast it’s spinning. That live timing data is critical: it syncs spark and fuel on the petrol model, coordinates injection on the diesel, helps with misfire detection, and lets the ECU manage idle, start‑up, and overall drivability. If the sensor signal drops out or goes flaky, they can get hard starting, stalling at the lights, rough running, poor fuel economy, or a no‑start. The check engine light will usually pop on with codes like P0335/P0336.

There’s no scheduled replacement interval—these sensors are generally “fit and forget.” That said, heat, vibration, oil contamination or connector corrosion can age them out. During routine servicing, it’s worth a quick visual: check the harness routing, look for oil leaks near the sensor, and make sure the plug and terminals are clean and snug. If there’s an intermittent stall or crank‑no‑start, a scan and live‑data check of CKP RPM signal is the go‑to next step.

Replacement is straightforward for a trained tech: safely raise the vehicle if needed, disconnect the battery, access the sensor (typically mounted near the crankshaft—either at the timing cover or low on the block), unplug it, remove the retaining bolt, swap in a new sensor with a fresh O‑ring, and torque to factory spec. After installation, clear codes and perform a crank variation relearn with a compatible scan tool so the ECU can properly map the new signal. Always route the loom away from the exhaust and moving parts, and confirm a clean RPM signal and stable idle on the road test. Using a quality OE‑equivalent sensor helps avoid repeat issues, especially on hot Aussie and Kiwi summer days.

• Typical symptoms: hard start, random stall, rough idle, poor fuel economy, check engine light (P0335/P0336)
• Service tip: inspect connector and wiring during oil changes, fix oil leaks that can contaminate the sensor
• After replacement: clear codes and carry out a crank relearn with a scan tool

Popular questions

Where is the crank angle sensor on a 2018 Captiva 7?
It’s mounted near the crankshaft. On the 2.4‑litre petrol it’s typically low on the engine block or near the timing cover, on the 2.2‑litre diesel it’s in a similar low position aligned to the crank reluctor. Access can be from underneath, so ramps or a hoist help. A workshop manual view or a torch under the front is handy to spot the connector.

What are the tell‑tale signs the sensor is failing?
Common signs include a long crank before starting, sudden stalling once warm, rough idle, and the MIL with codes like P0335/P0336. In some cases there’s a no‑start until the engine cools. Live data will show an erratic or zero RPM reading while cranking when the sensor has gone.

Does it need coding after replacement?
No coding in the traditional sense, but the ECU should have a crankshaft variation relearn performed with a scan tool after replacement. That procedure teaches the ECU the new signal profile, improving start quality, idle stability, and misfire detection accuracy.