Engine Knock Sensor - 1991 300ZX

The engine knock sensor is crucial for the performance of your 1991 Nissan 300ZX equipped with the VG30DETT engine. If you experience knocking or pinging noises, it might indicate a failing knock sensor, typically part number 22060-30P00. When sourcing a replacement, ensure you check for compatibility across the 1990-1996 model years, particularly as part number 22060-30P01 may also fit but could have different mounting requirements. Installation involves disconnecting the battery and carefully removing the old sensor to avoid damage to the engine block. Common points of failure include corrosion and electrical issues, so inspect the wiring harness for any signs of wear or breakage. Always double-check the sensor's connector type to ensure a proper fit before purchasing from a junkyard or parts distributor.