Parts for your 2014 Honda Cr-v-Knock sensor

2014 Honda CR‑V knock sensor: fitted from factory, what it does, and how to look after it

Yes, the 2014 Honda CR‑V is built with a knock sensor. Technical references that confirm this include the Honda CR‑V 2012–2014 Service Manual (PGM‑FI/engine control section listing the Knock Sensor circuit and diagnostics), the Honda Electronic Parts Catalogue (showing an OE knock sensor for the K‑series 2.4‑litre engine fitted to 2014 models), and mainstream workshop data sets such as Autodata/Haynes, which include wiring diagrams and DTCs P0325/P0327/P0328 for the knock sensor on this vehicle.

The knock sensor’s job is simple but crucial: it “listens” for detonation (pinging) in the 2.4‑litre i‑VTEC and lets the ECU trim ignition timing to keep the engine running sweet while protecting it under load, heat, or on lower‑octane petrol. It helps balance performance, fuel economy and emissions, especially on long Aussie and Kiwi runs where conditions swing from city slog to highway climbs.

It isn’t a routine replacement item, but it does deserve attention during servicing. A quick visual check for oil contamination, damaged wiring, or a loose connector under the intake manifold goes a long way. If the ECU logs a code like P0325 or the CR‑V feels flat, uses more fuel, or pings under load, the sensor or its wiring may need work.

• Common signs of trouble: Check Engine light (often with P0325/P0327/P0328), audible pinging, doughy performance, and increased fuel use.
• Fuel tip: Stick with quality petrol. The sensor will compensate, but good fuel reduces how hard it has to work.

Replacement is straightforward for a trained tech but fiddly for DIY: access is typically under the intake manifold on the block’s centreline. Let the engine cool, disconnect the battery, unplug the sensor, then remove and refit with a torque wrench to the Honda spec. Over‑tightening can crack the sensor, under‑tightening can dull its “hearing”. Always clear codes and perform an idle relearn after work on engine management.

For reliability, use a genuine or high‑quality OE‑equivalent sensor and inspect the harness at the same time. On high‑kilometre CR‑Vs, heat and vibration can harden the loom, so securing the clip points properly helps prevent intermittent faults. With a healthy knock sensor, the 2014 CR‑V stays smooth, efficient and ready for the next kilometre.

Where is the knock sensor on a 2014 Honda CR‑V?

It’s mounted on the engine block beneath the intake manifold, roughly on the block’s centreline. Many techs reach it from underneath with a long socket, others remove the intake manifold for clearer access.

Does the knock sensor need regular replacement?

No. There’s no scheduled interval. It’s monitored by the ECU, so replace it only if there’s a fault code, confirmed diagnosis, or physical damage. During routine servicing, a quick check of the connector and loom is enough.

Is it safe to drive with a faulty knock sensor?

The ECU usually defaults to safer, retarded timing, so short‑term driving won’t typically harm the engine, but you’ll notice reduced power and economy. Sort it promptly to restore performance and ensure proper detonation protection.