Parts for your 2014 Honda Civic-Camshaft sensor

2014 Honda Civic camshaft sensor — purpose, servicing and replacement

Technical references confirm the 2014 Honda Civic is fitted with a camshaft position sensor (CMP). The Honda Civic Service Manual for 2012–2015 models (PGM-FI section: Camshaft Position Sensor) and Honda’s electronic parts catalogue list a CMP on the 1.8‑litre R18Z1 engine, and two sensors (CMP A and CMP B) on the K24Z7 Civic Si. Common OBD‑II diagnostics in the Honda manual (P0340–P0344, P0365–P0369) also reference the CMP on these engines, making the sensor directly relevant to the 2014 model year.

What does it do? The CMP tracks the exact position of the camshaft so the engine control unit can sync fuel injection, spark timing and i‑VTEC/VTC cam phasing. Accurate cam timing data means quick starts, smooth idle, decent fuel economy and clean emissions. If the sensor signal drops out or goes noisy, the ECU may struggle to sync, causing extended cranking, rough running, sluggish performance and a glowing check‑engine light.

For the 2014 Civic:

• 1.8‑litre R18Z1 models use one CMP on the cylinder head at the timing chain end.
• 2.4‑litre K24Z7 Si models use two sensors (CMP A/B) on the head, one per cam.

There’s no scheduled replacement interval for the CMP, it’s a replace‑on‑failure item. Good servicing habits help: clean engine oil and a correct‑spec filter support stable cam control and reliable signals. During routine servicing, a quick visual of the CMP connector and harness routing is worthwhile, especially near the rocker cover and timing cover where heat and oil mist live.

Typical fault clues owners may notice:

• Hard starting, intermittent stalling, uneven idle or misfires
• Reduced power, increased fuel use, or limp‑home behaviour
• Check‑engine light with codes such as P0340/P0341 (CMP A) or P0365/P0366 (CMP B on Si)

Replacement is usually straightforward: disconnect the battery, unplug the sensor, remove the retaining bolt, swap the sensor and O‑ring, lightly oil the new O‑ring, refit and tighten to the service‑manual torque, then clear codes and perform any required idle relearn. On Si models, don’t mix up CMP A and CMP B—note their positions before removal. If faults persist after replacement, inspect wiring continuity and cam timing, and verify engine oil condition and level.

Quality OEM or reputable aftermarket sensors are recommended. Labour time is modest, and most workshops can test the signal with a scan tool to confirm the fix before handing back the keys.

Does a 2014 Honda Civic have one or two camshaft sensors?

All 2014 Civics have a camshaft sensor. The 1.8‑litre R18Z1 models have one CMP. The 2.4‑litre K24Z7 Civic Si uses two—labelled CMP A and CMP B—to track both cams for its dual‑overhead‑cam setup and VTC control.

Where is the camshaft sensor on a 2014 Civic?

On the 1.8‑litre, it sits on the cylinder head at the timing chain end, near the top. On the Si, there are two sensors mounted on the head—typically one toward the intake side and one toward the exhaust side. They’re accessible with basic hand tools, always identify each sensor’s position before removal.

Can a failing camshaft sensor be cleaned, or should it be replaced?

The sensor itself isn’t really serviceable, if its internal electronics are failing, replacement is the fix. That said, cleaning the connector terminals, reseating the plug, and ensuring the O‑ring isn’t leaking oil onto the connector can resolve intermittent issues. Keeping the engine oil clean also helps maintain a stable cam signal.