Parts for your 2010 Honda Civic-Camshaft sensor

2010 Honda Civic Camshaft Position Sensor

Based on technical sources, the 2010 Honda Civic is fitted with a camshaft position (CMP) sensor from factory. The Honda factory service manual for the 2010 Civic covers CMP sensor diagnostics and fault codes (including P0340/P0341), and OEM parts catalogues list a CMP sensor for both the 1.8L i‑VTEC (R18) and performance variants. OBD‑II diagnostic frameworks used by Honda rely on cam and crank correlation, further confirming the sensor’s role on this model.

On a 2010 Civic, the camshaft sensor tells the ECU exactly where the intake cam is relative to the crank. That timing info lets the ECU fire injectors precisely, command i‑VTEC/VTC phasing properly, and keep emissions tidy. Paired with the crank sensor, it’s essential for clean starts, smooth idle, and decent fuel economy under Aussie and Kiwi driving conditions.

It’s not a routine service item, but it does live a hard life under the bonnet. Owners typically only replace it when faults pop up. Common signs include:

• Hard starting, rough idle, or stalling once warm
• Flat spots, poor fuel economy, or limp mode
• Engine light with codes like P0340/P0341 (cam signal range/performance)

When replacement is needed, a quality OEM‑equivalent sensor is smart. The CMP sits on the cylinder head at the timing chain end (under the engine cover on the 1.8L), sealed by an O‑ring. A typical approach is to disconnect the battery, unplug the connector, remove the retaining bolt, swap the sensor with a light smear of clean oil on the new O‑ring, and tighten to the service‑manual torque. Afterward, clearing codes and performing an idle relearn helps the ECU settle. Those less keen on spanners can have a licensed mechanic handle it in short order.

Preventative care is more about the environment around the sensor than the sensor itself. Regular oil changes keep cam phasers happy so the signal stays stable. Avoid pressure‑washing connectors, check for oil wicking into the plug, and repair brittle loom sheathing. If the vehicle’s a Civic Si/Type‑variant with different engine hardware, part number and location can vary, so confirming by VIN or engine code is the go.

Popular questions about a 2010 Honda Civic camshaft sensor

Where is the camshaft sensor on a 2010 Civic?
On the 1.8L R18 engine, it’s mounted on the cylinder head at the timing chain end, just beneath the plastic engine cover. The connector points toward the front of the vehicle. Performance variants use a similar spot on the head, but exact bracket and orientation can differ.

What fault codes indicate a bad camshaft sensor on this model?
Common codes are P0340 (camshaft position sensor circuit) and P0341 (camshaft position sensor range/performance). These can also appear if there’s wiring damage, poor oil condition affecting cam phasing, or timing issues, so proper diagnosis is wise before swapping parts.

Is it safe to keep driving with a failing camshaft sensor?
It may run, but drivability can be ordinary—hard starts, misfires, or limp mode are possible. Prolonged driving risks poor fuel economy and could mask other faults. Most owners sort it promptly to avoid being stranded and to keep emissions and performance on point.