Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
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lemon-manuals.org.ua
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Knock Sensor: Testing and Inspection
KNOCK SENSOR SYSTEM CHECKS This powertrain system runs several tests of the Knock Sensor
(KS) system. A fault in the KS system can set several PCM DTC's. DTC P0325 will set if the a KS Module or PCM fault is detected. DTC P0326 will detect low octane fuel or engine noise and DTC P0326 will detect Knock Sensor and/or circuit faults.