Parts for your 2012 Honda Stream-Crank angle sensor

2012 Honda Stream crank angle sensor: what it does and when to replace it

Based on Honda technical literature and parts catalogues, the 2012 Honda Stream (RN6–RN9 with the R18A 1.8L and R20A 2.0L i‑VTEC engines) is equipped with a crankshaft position sensor, commonly called a crank angle sensor. Honda’s Stream service manual (PGM‑FI section, DTC P0335 Crankshaft Position Sensor Circuit) details diagnostics and scope patterns for this sensor, and Honda EPC listings show CKP/crank angle sensor part numbers applicable to RN6–RN9 models (examples include 37500‑RNA‑A01 and 37500‑R40‑A01, engine-dependent). So yes—this part is relevant and fitted to the 2012 Stream.

On a 2012 Honda Stream, the crank angle sensor keeps the engine computer in the loop about exactly where the crankshaft is and how fast it’s spinning. With that timing signal, the ECU fires the spark and times the fuel injection bang on, which is why a dud sensor can cause hard starts, random stalling, misfires or a total no‑start. It’s a small, sealed magnetic sensor mounted low at the front of the engine near the crank pulley/timing chain cover, reading a toothed reluctor on the crank.

It’s not a routine replacement item—there’s no scheduled interval in Honda’s maintenance charts. Most owners will only need to touch it if symptoms crop up or if a scan shows codes like P0335/P0336. Good practice during servicing is to:

• Visually check the harness and connector for oil contamination, chafing or a loose fit.
• Fix any oil leaks from the crank seal or timing cover that might soak the sensor.
• Scan for pending codes if there are intermittent hesitations or a shaky idle.

If replacement is needed, it’s a straightforward job under the bonnet. Disconnect the battery, access the sensor at the lower front of the engine, unplug it, remove the single retaining bolt, and ease the sensor out. Lightly oil the new O‑ring, seat it squarely, and torque the retaining bolt to about 9–10 N·m. Route the loom exactly as per factory to avoid rubbing on pulleys. On most Streams there’s no special “relearn” required—the ECU will adapt after a few drive cycles. Typical workshop time is 0.5–1.0 hour. Genuine or quality aftermarket sensors usually sit in the $120–$250 range, with fitted cost in Australia or New Zealand commonly in the $250–$450 ballpark.

Signs to watch for include:

• Cranks but won’t start, or stalls when hot
• Erratic tacho dropouts, rough running, or misfire under load
• Check Engine Light with P0335/P0336

Looking after the wiring and keeping oil away from the connector goes a long way to keeping the Stream’s crank angle sensor happy for the long haul.

Does the 2012 Honda Stream actually have a crank angle sensor?
Yes. Honda’s Stream service manual (PGM‑FI diagnostics) documents the crankshaft position sensor and related fault codes, and Honda parts catalogues list a CKP/crank angle sensor for RN6–RN9 models. It’s an essential input for ignition and fuel timing.

What symptoms point to a failing crank angle sensor on a 2012 Stream?
Common clues include long cranking or a no‑start when hot, sudden stalling, rough idle, misfires, a dead or jumpy tacho, and a Check Engine Light with codes like P0335. Intermittent faults can show up as occasional hesitations that get worse over time.

How much and how hard is it to replace?
It’s a simple remove‑and‑refit job—one bolt and a plug—usually 0.5–1.0 hour for a mechanic. Parts typically run $120–$250, with fitted cost around $250–$450 depending on brand and workshop rates in AU/NZ. Most Streams don’t need a special relearn, a short drive lets the ECU settle in.