Parts for your 2017 Haval H6-Camshaft sensor

2017 Haval H6 camshaft sensor: what it does and how to look after it

Based on Haval factory workshop literature and dealer electronic parts catalogues for the 2017 H6 petrol turbo variants, this model is fitted with a camshaft position sensor (CMP). The ECU relies on the CMP for accurate cam phasing and variable valve timing control, so it’s absolutely relevant to the 2017 Haval H6.

The camshaft sensor’s job is to tell the ECU exactly where the cam is in its rotation. That lets the ECU run true sequential fuel injection, time the spark properly, and command the variable valve timing gear to hit its targets. Without a clean cam signal, the H6 can be hard to start, can run rich or gutless, and may light the check engine lamp. Typical OBD-II fault codes for this circuit include P0340 and P0341.

It’s not a routine “replace-by-kilometres” item, but it does benefit from sensible checks during regular servicing. Oil ingress, heat, and vibration can fatigue the connector or the sensor’s internal electronics over time. During a service, it’s smart to:

• Inspect the CMP connector for loose pins, oil contamination, or brittle insulation.
• Check the harness routing isn’t rubbing on the cam cover or timing cover.
• Clear any oil weep around the sensor’s O-ring and replace the O-ring if it’s flattened or cracked.

If replacement’s on the cards, go for an OE or high-quality aftermarket unit that matches the original spec. The sensor is typically mounted on the cylinder head near the timing end, under the plastic engine cover. A basic swap-out usually involves disconnecting the battery, unclipping the connector, removing a small retaining bolt, swapping the O-ring, and refitting. Always tighten to the workshop manual spec and avoid over-torquing into the alloy head.

Before condemning the sensor, a quick diagnostic check helps. Scan live data to compare cam and crank correlation, confirm stable RPM and phase signals, and rule out VVT actuator faults. Many ECUs will still crank and sometimes run in a limp strategy using only the crank sensor, but starting can be long and drivability poor—so a healthy cam signal is worth its weight in gold for smooth running and decent fuel economy.

If the H6 is stalling at idle, cranking longer than normal, or showing erratic VVT performance after warm-up, the cam sensor and its wiring should be high on the inspection list.

Popular questions

Where is the camshaft sensor on a 2017 Haval H6?
On most 2017 H6 petrol turbo engines it sits on the cylinder head at the timing end, usually hidden by the top engine cover. The exact spot can vary with engine variant, so a quick look under the cover or a check against the VIN in a parts catalogue will pinpoint it.

What are the signs of a failing camshaft sensor?
Common clues include hard starting, rough idle, flat spots on acceleration, poor fuel economy, and a check engine light with codes like P0340/P0341. Intermittent heat-related faults are also typical—runs fine cold, plays up once hot.

Can the H6 run if the camshaft sensor fails?
Sometimes, but not happily. Many ECUs will attempt to start and run using the crank sensor alone, which can mean longer cranking, reduced power, and fixed (not adaptive) cam timing. It’s a get-you-home mode, not a fix—proper diagnosis and repair are the go.