Parts for your 2022 Toyota Camry-Knock sensor

2022 Toyota Camry knock sensor — what it is and why it matters

Based on Toyota’s technical literature, the 2022 Toyota Camry is fitted with a knock sensor (Toyota calls it a “Knock Control Sensor”). Toyota New Car Features (NCF) for the A25A-FKS/A25A-FXS Dynamic Force engines and the 2GR-FKS V6 describe the sensor’s role in ignition control. The Toyota Repair Manual lists DTCs P0327/P0328 (Knock Sensor Circuit Low/High, Bank 1) and P0330 (Bank 2 for the V6), and the Toyota Electrical Wiring Diagram shows the knock control sensor circuit into the ECM. That confirms every 2022 Camry variant, including Hybrid, uses a knock sensor (the V6 has two).

The knock sensor is the engine’s ears. It listens for detonation (knock) and lets the engine computer fine‑tune ignition timing on the fly. That keeps power smooth, protects the engine from damage, and helps fuel economy. It’s especially handy with Aussie and Kiwi pump petrol where conditions, loads and fuel quality can vary. The 2022 Camry is calibrated for 91 RON minimum, but with the sensor keeping tabs, timing can advance when conditions allow and back off if the engine starts to ping.

As a servicing item, the knock sensor isn’t a regular replacement part. It’s solid‑state, sealed, and typically lasts the life of the vehicle. Replacement is only recommended when diagnostics point to a fault (e.g., DTC P0327, P0328, P0330), there’s physical damage, or wiring issues. On 2.5‑litre A25A engines the sensor sits on the block beneath the intake manifold, on the 3.5‑litre 2GR‑FKS V6 there are two sensors in the “V” under the intake. Access generally requires intake removal, new gaskets, and careful reassembly.

• Common signs of trouble: check engine light with the above DTCs, noticeable pinging under load, sluggish performance, higher fuel use, or uneven acceleration.
• Good practice: confirm with scan data and a proper diagnostic flowchart from the Toyota Repair Manual. Inspect the harness and connector for oil intrusion or corrosion before condemning the sensor.
• Replacement tips: use a genuine‑quality sensor, clean the block seating surface, follow the specified orientation and torque with a calibrated wrench, route the loom as per factory to avoid noise pickup, clear codes and road‑test to verify knock correction is active.

Owners who run quality petrol (91 RON or higher), keep the cooling system healthy, and service the intake and PCV systems on schedule help the ECM and knock sensor do their best work over many kilometres.

Popular questions about the 2022 Toyota Camry knock sensor

Where is the knock sensor on a 2022 Camry?
The 2.5‑litre A25A engine uses a single knock control sensor mounted to the engine block under the intake manifold. The 3.5‑litre 2GR‑FKS V6 has two sensors in the valley beneath the intake. Access usually requires removing the intake assembly, so it’s a moderate to advanced job.

What are the symptoms of a faulty knock sensor?
Typical signs include a check engine light with codes like P0327, P0328 or P0330, audible pinging under load, softer acceleration, and increased fuel consumption. Because other faults can mimic these symptoms, proper diagnosis is essential before parts replacement.

Will using 95 or 98 RON petrol help?
Higher octane fuel reduces the tendency for knock, allowing the ECM to run more optimal timing more often. The sensor itself isn’t “protected” by premium petrol, but the engine can run cleaner and smoother. The Camry is designed for 91 RON minimum, 95/98 RON may deliver a slight response benefit depending on conditions.