Parts for your 2019 Honda Civic-Crank angle sensor

2019 Honda Civic crank-angle sensor (crankshaft position sensor)

Based on Honda’s factory workshop manual for the 10th‑gen Civic (2016–2021) and common OEM parts catalogues, the 2019 Honda Civic is fitted with a crankshaft position (CKP) sensor, often called a crank‑angle sensor. The manual describes CKP monitoring for the 1.8L (R18 series), 1.5L turbo (L15B7) and 2.0L turbo (K20C1) engines, and the OBD‑II fault set includes CKP‑related DTCs such as P0335–P0339—clear evidence the sensor is integral to engine management.

What does it do? The crank‑angle sensor tracks the exact position and speed of the crankshaft by reading a toothed reluctor wheel. The ECU uses that signal to time fuel injection, spark, and variable valve/cam events. Without a clean CKP signal the engine can crank but not start, misfire, stumble, or drop into limp mode. On the 2019 Civic, the sensor is mounted at the engine block near the crank pulley, access is typically from underneath after removing the splash shield.

There’s no scheduled replacement for the CKP—it's a fit‑and‑forget item—but sensible servicing helps it live a long life:

• Keep the connector and loom clean and dry, avoid blasting the area with a pressure washer.
• During services, eyeball the harness where it passes near engine mounts and the pulley for chafing or oil contamination.
• If there’s oil weep around the sensor, renew the O‑ring when refitting.

Replacement is straightforward for a competent DIYer with axle stands, but many owners will prefer a workshop. Expect to: disconnect the battery, raise the front, remove the undertray, unplug the sensor, and undo the retaining bolt. Fit a quality OEM‑spec sensor, lightly lube the O‑ring, seat squarely, and tighten the bolt to the workshop‑manual spec. Reconnect, clear any codes, and perform an idle/CKP relearn if prompted by a scan tool. Honda procedures may call for an idle learn (let it idle at operating temperature with all loads off) and, on some variants, a CKP pattern learn via a compatible scan tool.

Common warning signs include extended cranking, intermittent stalling at lights, surging under load, tachometer dropouts, and the MIL with codes like P0335. If those crop up on a 2019 Civic, technicians will typically check live CKP data, wiring integrity, and waveform quality before condemning the sensor itself.

• Does the 2019 Honda Civic have a crank‑angle sensor, and where is it?
  Yes. It’s the crankshaft position (CKP) sensor. On most 1.8 and 1.5T models it’s mounted at the front of the engine by the crank pulley and is accessed from underneath after removing the splash shield.
• What are the symptoms of a failing CKP on a 2019 Civic?
  Hard starting, random stalling, rough running, poor fuel economy, and the check‑engine light with codes like P0335–P0339. Live data will show dropouts in engine speed when the fault occurs.
• Is there routine maintenance for the CKP sensor?
  No scheduled replacement. During regular services, inspect the connector and harness for damage, ensure no oil contamination, and avoid high‑pressure water around the sensor area.