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Home >> Acura >> 1995 >> 2.5TL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Trouble Codes >> Code P0333 - Rear Knock Sensor High Input
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Code P0333 - Rear Knock Sensor High Input

  1. Connect and operate scan tester, following manufacturer's instructions. Clear codes. Turn ignition on. Retrieve codes. If Code P0333 appears, go to next step. If Code P0333 does not appear, problem is intermittent. Inspect for loose sensor, poor connections, or loose wires associated with rear knock sensor, then repair as necessary.
  2. Turn ignition off. Unplug front knock sensor connector. Measure resistance between sensor terminal and ground. If resistance is 504-616 ohms, go to next step. If resistance is not 504-616 ohms, replace knock sensor.
  3. Reconnect wiring to knock sensor. Measure resistance between 12-pin ECM connector terminal No. 1 (White/Green wire) and 26-pin ECM terminal A26 (Brown/Black wire). If resistance is not 504-616 ohms, repair open White/Green wire between knock sensor and ECM. If resistance is 504-616 ohms, temporarily substitute known good ECM, then retest system.
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