Walker Products 242-1269 ignition knock (detonation) sensor for the 2002-2003 Nissan Altima 4-cylinder 2.5L and other vehicles listens for engine knock and signals the ECU to adjust ignition timing. The ECU uses that signal to retard spark when detonation occurs.
A failing knock sensor can show up as a check engine light with a code such as P0325 or P0330, or as timing and drivability issues. Wiring or a connector in poor shape can also set those codes, so look them over by eye with the engine off and cool. If a failed sensor is the cause, this one replaces it.
It is a direct-fit replacement for the 2002-2003 Nissan Altima 4-cylinder 2.5L and the 2002-2003 Nissan Sentra 4-cylinder 2.5L. This listing is one sensor, and the 2002-2003 Nissan Sentra 4-cylinder 2.5L takes one.
Fit and size
Build and materials
Interchange: 5S2242 · S8809 · 2KNC02520 · ID0159 · KS209
This part cross-references / interchanges with the following part numbers:
Is the Walker Products 242-1269 knock sensor right for a 2002-2003 Nissan Sentra 4-cylinder 2.5L?
Yes. Walker Products 242-1269 fits the 2002-2003 Nissan Sentra 4-cylinder 2.5L and the 2002-2003 Nissan Altima 4-cylinder 2.5L. This listing is one sensor.
What kind of connector does the Walker 242-1269 knock sensor have?
Walker Products 242-1269 has one rectangular female connector with two male spade terminals.
Which fault codes lead people to replace a knock sensor?
Codes such as P0325 and P0330 are among the faults this sensor type is used to address, along with timing and drivability issues. A shop can scan the system to see which circuit set the code.
Will this knock sensor need any modifications to install?
No. Walker Products 242-1269 installs into the original threaded location and connects with factory-style electrical terminals.
Is Walker 242-1269 a replacement for part number KS209?
Yes. KS209 is one of the numbers this sensor replaces, shown on the Interchange line.
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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.
