Parts for your 2007 Holden Captiva 7-Camshaft sensor

2007 Holden Captiva 7 Camshaft Sensor – What it does and how to keep it sorted

Technical references including the Holden Captiva CG Series workshop manual (2006–2008), GM Service Information (SI), and ACDelco/Delphi parts catalogues confirm the 2007 Holden Captiva 7 is fitted with a camshaft position sensor (CMP). Both the 3.2L V6 petrol (LY7) and the 2.0L VCDi diesel list a CMP in wiring diagrams, diagnostic routines and parts listings. Petrol variants use multiple CMP sensors (one per bank/cam), while the diesel uses a single CMP at the cylinder head. So yes—this model relies on a camshaft sensor.

The camshaft sensor’s job is to tell the engine control module exactly where the cam(s) are relative to the crank. That signal lets the ECU fire injectors in the right order, control ignition timing on the petrol V6, and manage variable valve timing. On the diesel, it’s crucial for injection timing and clean starts. The pay-off is smoother idle, easier starts, better fuel economy and lower emissions. If the CMP signal goes missing or messy, the ECU will fall back to limp strategies or fail to start.

It’s not a scheduled replacement item, but it lives in a hot, oily spot under the bonnet, so simple checks during servicing go a long way. Look for brittle wiring, oil wicking into the connector, or damage from prior work around the timing covers. Keep the connector clean and clipped, and fix any oil leaks that could contaminate the sensor tip.

Signs the Captiva’s cam sensor may be on the way out include:

• Long crank, no start, or sudden stall
• Rough idle, poor performance, increased fuel use
• Check Engine Light with codes like P0340/P0341 or cam/crank correlation faults (P0016–P0019)

Replacement is straightforward with basic tools:

1. Scan and record fault codes, verify with live data (cam/crank sync, RPM while cranking).
2. Inspect the harness and connector first, repair any damage.
3. Disconnect the battery. On the 3.2L V6, the CMPs sit at the rear/top of the cylinder heads (bank-specific), on the 2.0L diesel, it’s at the front of the head near the timing cover. Remove the retaining bolt, twist and withdraw the sensor.
4. Lightly oil the new O-ring, install, and tighten to the service manual spec. Reconnect, clear codes, and perform an idle relearn if needed. A road test should show stable cam/crank correlation and no fresh codes.

Quality matters—use an OEM-grade sensor. If issues persist after replacement, consider related causes such as a worn timing chain, damaged reluctor, or a crank sensor fault. Done right, the Captiva will be back to easy starts and tidy running without any dramas.

Popular questions

Where is the camshaft sensor on a 2007 Captiva 7?
The 3.2L V6 has cam sensors mounted on the cylinder heads—one per bank, accessed at the rear/top near the cam covers. The 2.0L diesel’s sensor is at the front of the cylinder head, close to the timing cover. Access can vary with engine covers and intake ducting removed.

What fault codes point to a bad camshaft sensor on this model?
Common codes are P0340/P0341 (camshaft position circuit/performance) and cam/crank correlation codes like P0016–P0019. Always confirm with live data and wiring checks before replacing parts.

Does a new camshaft sensor need programming?
No special programming is typically required. After installation, clear the codes and let the ECU relearn at idle. Some vehicles may briefly hunt at idle until the trims settle, which is normal.