Parts for your 2009 Holden Colorado-Camshaft sensor

2009 Holden Colorado Camshaft Sensor

It’s definitely fitted. Technical sources including the Holden Colorado RC (2008–2011) workshop manual, Isuzu 4JJ1 engine service literature, and OE parts catalogues from ACDelco/Delphi all list a camshaft position sensor (CMP) for the 2009 Colorado across both the 3.0L 4JJ1 common-rail diesel and the petrol variants. These manuals also define diagnostic trouble codes like P0340/P0341 for the CMP circuit, confirming the sensor’s role in the engine management system.

On this ute, the camshaft sensor tells the ECU exactly where the cam is in relation to the crank. That lets the ECU time injection events precisely (including pilot injection on the diesel), manage starting, stabilise idle, reduce smoke, and keep fuel economy tidy. Without a clean cam signal, the ECU can’t sync correctly with the crank signal, which can lead to long cranking, misfires, rough running, or a no-start. Even though there’s no variable valve timing on the 4JJ1, the CMP is still essential for accurate phasing and fault detection.

• Common symptoms when the CMP is crook: hard starting or no-start when hot, rough idle, poor fuel economy, intermittent stalling, limp mode, and the engine light on with codes P0340/P0341.
• Typical locations: on the 4JJ1 diesel it’s mounted at the front timing case, on petrol models it sits near the cam at the cylinder head (position varies by engine).

There’s no scheduled replacement interval for the CMP, it’s generally maintenance-free. During servicing, it’s worth a quick look under the bonnet: check the connector for oil ingress or green crusties, ensure the harness isn’t rubbing on the timing cover, and tidy any brittle conduit. Oil leaks from the rocker cover can contaminate the plug and skew the signal, so fix leaks promptly.

1. Disconnect the negative battery terminal.
2. Locate the sensor and unplug the connector, inspect pins and clean with proper contact cleaner.
3. Remove the retaining bolt and gently twist the sensor out, watch the O-ring.
4. Lightly oil the new O-ring, seat the new sensor squarely, and tighten the bolt to spec (refer workshop manual).
5. Reconnect, clear fault codes, and check live data for cam/crank sync with a scan tool.
6. Road test over a few kilometres to confirm smooth starts and no returning codes.

Quality matters here, stick with reputable brands that meet OE spec. If faults persist after replacement, check the crank sensor and timing alignment, as the ECU needs both signals to play nicely together.

Popular questions about 2009 Holden Colorado camshaft sensors

Does a 2009 Holden Colorado actually have a camshaft sensor?
Yes. The RC-series workshop manual and Isuzu 4JJ1 engine documentation both specify a camshaft position sensor, and OEM catalogues list a CMP for 2008–2011 Colorado diesel and petrol variants. Related fault codes (P0340/P0341) are also defined for this model.

Where is the camshaft sensor on a 2009 Colorado?
On the 3.0L 4JJ1 diesel it’s typically mounted at the front timing case near the cam gear housing. On petrol versions it’s fitted at the cylinder head near the cam. Exact position can vary, so checking the engine-specific service diagram is the safest bet.

Can the camshaft sensor be cleaned, or should it be replaced?
If the issue is light contamination or a dodgy connector, a careful clean and terminal refresh can help. If the sensor has internal faults, damaged wiring, or keeps logging P0340/P0341, replacement with an OE-quality unit is the reliable fix.