Keep the signal path to your engine's knock sensor solid with the Standard Ignition Ignition Knock (Detonation) Sensor Connector, MPN S2885. This direct-fit replacement connector restores the electrical link between the vehicle's wiring harness and the knock (detonation) sensor, and it covers a broad range of applications — including the 1998-2011 Nissan Altima, 1999-2006 Nissan Maxima, 2012-2018 Mazda 3, 2003-2004 Infiniti FX35, and 2017 Ford F-350 Super Duty. See the Buyer's Guide tab for the full list of 37 vehicles.
A knock sensor detects the vibrations produced by engine detonation (pinging) and reports them to the ECM, which can adjust ignition timing accordingly. Over time the connector's terminals can corrode, loosen, or become damaged by heat and vibration, which may interrupt that signal. Common signs include a knock-sensor circuit trouble code, an illuminated check engine light, or an intermittent connection at the sensor. If a failed connector is the cause, this replaces it — diagnose the circuit first to confirm the connector, rather than the sensor or wiring, is at fault. Manufacturer part number S2885.
What does the S2885 connector do?
It joins the vehicle's wiring harness to the knock (detonation) sensor so the sensor's signal can reach the engine control module.
Will it fit my vehicle?
It's listed for 37 applications across Ford, Infiniti, Mazda, Nissan, and Subaru. Check the Buyer's Guide tab to confirm your exact year, make, and model.
What are signs the connector may need replacing?
Corroded or loose terminals, a knock-sensor circuit trouble code, an illuminated check engine light, or an intermittent connection at the sensor. Diagnose to confirm the cause.
Will replacing this clear a knock sensor code?
If a damaged connector is the cause of the code, replacing it can resolve it. The code can also stem from the sensor or wiring, so diagnose the circuit first.
Is this the connector only, not the sensor?
Yes, this listing is for the knock (detonation) sensor connector (MPN S2885), not the knock sensor itself.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
