30530-PPL-A01, Ignition Knock Detonation Sensor for Honda

RICHWEI's 30530-PPL-A01 is a direct-fit ignition knock (detonation) sensor engineered to replace worn sensors on compatible Honda and Acura engines, restoring proper knock detection.

This aftermarket knock sensor matches multiple OEM part numbers and fits a range of Honda and Acura models from the early 2000s to 2012. It senses engine detonation so the ECU can adjust timing, and is sold as a single sensor with quality-checked materials. Before ordering, confirm your vehicle year, make and model to ensure correct fitment.

Which vehicles and part numbers does this sensor replace?

The RICHWEI 30530-PPL-A01 replaces several OEM and aftermarket reference numbers and fits many Honda and Acura models from 2002–2012. Use your vehicle details to cross-check compatibility so you receive the correct replacement.

• Replacement/compatible numbers: 30530PPLA01, 30530-PL-A01, 30530PNA003, 30530-PNA-003, KS197, SU6143, 5S2320, 1580917.
• Honda compatibility: Civic (2002–2005), CR-V (2002–2009), Accord (2003–2007), Element (2003–2011).
• Acura compatibility: RDX (2007–2012), RSX (2002–2006), TSX (2004–2008).

How will installing this sensor affect engine performance?

A functioning knock sensor helps the engine control unit detect pre-ignition and detonation so ignition timing can be adjusted. Replacing a faulty sensor prevents timing errors that can reduce fuel efficiency, trigger check-engine lights, or allow knocking to continue.

• Restores accurate knock detection and ECU timing adjustments.
• Can eliminate related diagnostic trouble codes (when installed correctly).
• Supports smoother idle and consistent acceleration under load.

Is the RICHWEI sensor a direct bolt-in replacement and what should I check before purchase?

The sensor is offered as a direct-fit replacement for the listed part numbers and model years, designed to install in the same mounting location and connector type as the original. Still, verify your vehicle’s exact year, engine type, and OEM part number before buying to avoid compatibility issues.

• Confirm OEM part number or use your vehicle’s VIN with a parts lookup tool.
• Compare connector style and mounting threads to your old sensor.
• Inspect wiring harness for damage before final installation.

What should I know about installation and quality?

The sensor is manufactured from high-grade materials and each unit undergoes production checks to meet quality expectations. Installation typically requires moderate mechanical skill; torque specs and a clean sensor seat are important to avoid leaks or misreading.

• Sold as one ignition knock/detonation sensor per package.
• Use correct torque and a clean mounting surface when installing.
• If in doubt, have a professional mechanic fit the part and clear codes after replacement.

Who is this for: This RICHWEI 30530-PPL-A01 sensor is aimed at DIY mechanics, independent repair shops, and owners of compatible Honda or Acura vehicles who need a cost-effective, tested replacement for a faulty knock sensor. It’s suitable if you require a direct-fit part that matches common OEM numbers, want to restore proper engine knock detection, and have verified fitment with your vehicle’s year and model before purchase.