DOICOO Camshaft Position Sensor for Honda Civic 2001-2005 — 37840-RJH-006 Direct-Fit, OEM-Quality

DOICOO 37840-RJH-006 is a direct-fit camshaft position sensor replacement designed to restore accurate engine timing signals for compatible Honda Civic models from 2001–2005.

If your Civic is showing engine misfires, rough idle, stalling, or a check-engine light related to camshaft position codes, swapping the faulty sensor for a quality replacement can often clear the fault and return smooth operation. This DOICOO sensor is manufactured to meet OEM specifications, arrives boxed, and comes with a one-year warranty for replacement or refund if defects arise within that period.

How does this sensor affect engine performance?

The camshaft position sensor tells the engine control unit the exact position of the camshaft so fuel injection and ignition timing can be synchronized. A failing sensor can cause poor fuel economy, reduced power, and engine hesitation because timing becomes inconsistent.

• Direct replacement for OEM part numbers 37840-RJH-006, 37840PLC005/006.
• Restores accurate timing signals to the ECU for proper ignition and injection sequencing.
• Helps eliminate camshaft-related trouble codes when it’s the root cause.
• Improves idle stability and throttle response when installed correctly.

Is installation difficult and what tools are required?

Installation is straightforward for someone comfortable with basic automotive tasks; no special programming or calibration is needed. You typically disconnect the battery, unplug the wiring connector, remove the old sensor, and install the new unit following the vehicle’s torque specs.

• No dealer reprogramming required—designed as a plug-and-play replacement.
• Hand tools and a ratchet set are usually sufficient; no specialty tools needed.
• Follow the included steps: diagnose, unplug connector, remove old, install new, clear codes.
• Double-check fitment with part numbers before starting to avoid fitment issues.

Which cars will this part fit and how do I confirm compatibility?

This DOICOO camshaft position sensor fits Honda Civic model years 2001 through 2005 when matched to the listed part numbers. Confirm compatibility by comparing the part numbers and connector shape to your vehicle’s original sensor prior to ordering.

• Compatible models: HONDA CIVIC 2001, 2002, 2003, 2004, 2005.
• Compatible part numbers: 37840-RJH-006, 37840PLC005, 37840PLC006, 37840RJH006, 907-773, 907773.
• Verify connector pin layout and mounting flange match your existing sensor.
• Refer to vehicle service manual or diagnostic trouble codes for accurate identification.

What quality assurances and warranty options are included?

This sensor is produced to meet OEM specifications and undergoes testing before shipment to ensure stable performance and longevity. DOICOO backs the part with a one-year warranty offering refund or replacement if a covered defect appears within the warranty period.

• Box packaging and pre-shipment testing for consistent performance.
• One-year warranty supports quick refund or replacement on valid claims.
• Designed as a direct replacement—no calibration or modification required.
• Follow warranty procedure: contact DOICOO with purchase and issue details.

Who is this for: The DOICOO 37840-RJH-006 camshaft position sensor is aimed at DIY mechanics, independent shops, and Civic owners who need an economical, OEM-spec replacement for camshaft-signal faults. It’s suitable for anyone who wants a tested, plug-and-play sensor for 2001–2005 Honda Civics that restores timing accuracy without dealer programming.