Parts for your 2013 Honda Odyssey-Knock sensor

2013 Honda Odyssey knock sensor — purpose, care, and when to replace

Yes, the 2013 Honda Odyssey is fitted with a knock sensor. Technical references confirming this include the Honda Odyssey 2011–2017 Service Manual (Engine Control section covering DTCs P0325/P0327/P0328 for the knock sensor circuit), Honda’s OEM parts catalog listings for “Knock Sensor” on the 2013 Odyssey V6 (J35-series engine), and workshop information systems such as AlldataDIY/ProDemand, which show the sensor mounted on the engine block beneath the intake manifold. These sources describe its location, wiring, and the ECU logic that uses the sensor to manage ignition timing.

On this model, the knock sensor is a small piezoelectric microphone that listens for detonation (that sharp metallic ping under load). When it hears knock, the Odyssey’s ECU trims ignition timing just enough to protect the 3.5‑litre V6 while keeping performance and efficiency on point. That’s especially handy on our Aussie and Kiwi fuels, with varying octane and conditions like hot days, steep hills, towing, or a fully loaded family run.

There’s no scheduled maintenance for the knock sensor, but a bit of care during servicing goes a long way. If the Odyssey throws a check engine light with codes like P0325, P0327, or P0328, or it feels a bit lazy and thirsty, it’s worth checking the sensor and its harness. Oil or coolant leaks in the valley, corrosion on the connector, or a chafed wire can upset the signal. Fuel quality matters too—poor fuel can trigger real knock that keeps the ECU constantly pulling timing.

Replacement isn’t difficult for a pro, but DIYers should note it sits under the intake manifold. That means disconnecting the battery, removing the manifold with care, and fitting new intake gaskets on reassembly. Use a quality OEM‑spec sensor, tighten it to the correct torque on clean threads (no goop or Teflon tape), route the loom exactly as it left the factory, clear any DTCs, and complete an idle/drive learn so the ECU settles in. No special reprogramming is typically required—just a proper road test and scan for pending faults.

• Common signs of trouble: check engine light, rattly ping under load, flat performance, worse fuel economy.
• Best practice: fix oil/coolant leaks in the valley, keep connectors clean and latched, and don’t skimp on gaskets during manifold refit.

Technical sources referenced: Honda Odyssey 2011–2017 Service Manual (Engine Control, Knock Sensor diagnostics), Honda OEM Parts Catalog for 2013 Odyssey V6, and professional workshop databases (AlldataDIY/ProDemand) showing sensor location and ECU strategy.

FAQs

Where is the knock sensor on a 2013 Odyssey?
It’s threaded into the engine block under the intake manifold in the V of the V6. Access is from the top once the upper intake components are removed. A torch and mirror help confirm the connector and harness routing before reassembly.

Is it safe to drive with a faulty knock sensor?
The van will often run, but the ECU pulls timing to stay safe. Expect dulled performance and higher fuel use. More importantly, if the sensor can’t “hear” real knock, there’s a risk of engine damage under heavy load. Best to diagnose and fix promptly.

Do I need any special reset after replacing it?
No coding is usually needed. Clear the fault codes, perform an idle relearn if the battery’s been off, and take it for a proper drive cycle so the ECU adapts. Recheck for pending codes and ensure there’s no harness strain or vacuum leaks from the manifold.