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Parts for your 2019 Haval H6-Camshaft sensor
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2019 Haval H6 camshaft sensor — what it does and how to look after it
Based on technical references — the Haval H6 2017–2020 Workshop Manual (Engine Control System), Great Wall Motors GW4C20/GW4B15 engine management training materials, the Haval Electronic Parts Catalogue for MY2019 (ANZ market), and Bosch MED17 engine-management documentation — the 2019 Haval H6’s turbo‑petrol engines are equipped with a Hall‑effect camshaft position sensor (CMP), in some variants one per cam. So yes, the camshaft sensor is fitted and absolutely relevant on the 2019 Haval H6.
On a 2019 Haval H6, the camshaft sensor lets the ECU know exactly where the cam(s) are, so it can time fuel injection, spark, and the variable valve timing. That’s how it fires up cleanly, idles smoothly, and pulls well through the revs. Lose that signal and the ECU has to guess using the crank sensor alone — it’ll usually start harder, run rough, and throw a warning lamp. On most H6 engines it lives on the cylinder head near the timing cover, commonly on the intake side, some variants run a second sensor on the exhaust cam.
It’s not a scheduled service item, but it pays to keep an eye on it during routine servicing. Make sure the connector is snug, the wiring isn’t chafed where it runs past the timing cover, and the sensor’s O‑ring isn’t weeping oil. Clean oil is king: timely oil and filter changes help the variable valve timing system stay happy, which keeps the cam signal stable. If you’re chasing a drivability niggle or a check‑engine light, scan for codes like P0340/P0341 and check cam/crank correlation before throwing parts at it.
When a camshaft sensor does fail, replacement is usually quick — typically a single retaining bolt and a plug under the bonnet. Use a quality OEM‑equivalent sensor, lightly oil the new O‑ring, and tighten to the manufacturer’s spec (don’t overdo it). After fitting, clear any fault codes and perform a cam/crank relearn with a scan tool if prompted, many will relearn on their own after a short drive cycle. Also inspect the loom for brittle insulation or oil intrusion, as wiring faults can mimic a bad sensor. Done right, the H6 will be back to easy starts, smooth idle, and better fuel economy — no dramas.
- Common symptoms: long crank, misfire at idle, flat spots, poor economy, MIL on.
- Workshop checks: 5V reference, ground integrity, signal shape, connector fit and sealing.
Popular questions about the 2019 Haval H6 camshaft sensor
Where is the camshaft sensor on a 2019 Haval H6?
It’s typically on the front of the cylinder head by the timing cover, most often on the intake cam. Some engine variants may also have a second sensor on the exhaust cam. Access is under the bonnet, remove the engine cover and you’ll spot the small sensor body with a two‑ or three‑pin plug.
Do camshaft sensors need servicing or just replacement when faulty?
There’s no set service interval. During regular servicing, inspect the connector, wiring, and O‑ring for damage or leaks. Replace the sensor only if it’s faulty or contaminated. Keeping up with oil changes helps prevent VVT‑related issues that can look like a sensor fault.
After replacing the camshaft sensor, does the H6 need programming?
Usually no dedicated programming is needed. Clear codes and take a short drive for the ECU to relearn. Some scan tools offer a cam/crank relearn — it’s a good idea to run it if available, especially after battery disconnection or if multiple sensors have been changed.
