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Parts for your 2012 Honda Cr-v-Camshaft sensor
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2012 Honda CR‑V camshaft sensor: what it does and when to service it
Yes, the 2012 Honda CR‑V uses a camshaft position sensor (often called a CMP sensor). Honda’s 2012–2014 CR‑V Service Manual details CMP Sensor A/B diagnostics and DTCs (e.g., P0340, P0341, P0365, P0366), and Honda’s electronic parts catalogue lists a “Sensor Assy., Cam Position” for this model. The 2.4‑litre K‑series (DOHC) typically runs two sensors (intake “A” and exhaust “B”), while the 2.0‑litre R‑series (SOHC) commonly uses one. All are integral to the engine control strategy.
On this CR‑V, the camshaft sensor tells the ECU exactly where the cam(s) sit in their rotation. That info lets the ECU sync sequential fuel injection, dial in spark timing, and manage VTEC/VTC cam phasing for smooth starts, solid mid‑range, and clean emissions. Under the bonnet, the sensor(s) sit on the end(s) of the cylinder head, reading a trigger on the cam.
It’s not a scheduled service item, but it does appreciate clean oil and a healthy connector. Gritty oil and sludge can upset the signal, so sticking to the right oil grade and interval is your best “maintenance” move. During major services, a quick look over the harness routing and plug is smart—especially if the vehicle’s done a lot of kilometres or has had previous top‑end work.
Typical warnings of a crook cam sensor include longer cranking, hiccups off idle, flat spots, poor fuel economy, and the check‑engine lamp. The ECU may log codes like P0340/P0341 (Sensor A) or P0365/P0366 (Sensor B on two‑sensor setups). If any of that pops up, testing the sensor signal and wiring beats guessing.
- Replacement tips: use quality parts, fit a new O‑ring, and lightly oil it before install.
- Mind the heat—work on a cool engine and clean the mounting face before refitting.
- On 2.4L models with two sensors, don’t mix up A (intake) and B (exhaust).
- Clear codes and perform an idle relearn if specified in the service data.
Most workshops in Aus and NZ will have this job sorted in well under an hour if access is straightforward. If a new sensor doesn’t fix the drama, consider cam timing issues, a failing VTC actuator, or wiring faults before throwing more parts at it.
Popular questions
Does the 2012 Honda CR‑V have one or two camshaft sensors?
Most 2.4‑litre K‑series models use two sensors (CMP A on the intake cam and CMP B on the exhaust cam). Many 2.0‑litre R‑series engines use a single cam sensor. Honda’s service literature and parts catalogues for the 2012 CR‑V reflect these setups.
Is it safe to drive with a faulty camshaft sensor?
It may still run, but it can crank longer, misfire, or drop into limp mode. Because the ECU can’t accurately phase fuel and spark, it’s not ideal to keep driving. It’s best to diagnose and fix it promptly to avoid poor performance and potential damage over time.
Where is the camshaft sensor located on a 2012 CR‑V?
Under the plastic engine cover at the end of the cylinder head. On 2.4L models, there’s typically one sensor at the intake side and a second at the exhaust side. On 2.0L engines, expect a single sensor at the cam end. Access is usually straightforward with basic spanners.
