P1326 HYUNDAI – Knock Sensor Detection System

P1326 HYUNDAI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1326 HYUNDAI Possible Causes

Faulty Knock Sensor,Knock Sensor harness is open or shorted,Knock Sensor circuit poor electrical connection,Engine mechanical problem,Reprogram Engine Control Module (ECM)

P1326 HYUNDAI Description

The Knock Sensor Detection System (KSDS) detects vibrations indicating the onset of excessive connecting rod bearing wear. It is designed to alert the driver at an early stage of bearing wear before the occurrence of severe engine damage, including engine failure. If vibrations caused by bearing wear start to occur, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Limp Home Mode. This will reduce further damage to the engine and ensure that the vehicle occupants are not exposed to the risk of a more severe engine failure. At that time, Diagnostic Trouble Code (DTC) P1326, specific to the KSDS, will be recorded in the ECU. The vehicle can continue to be operated for a limited time in Limp Home Mode, but it will accelerate slowly and have a reduced maximum speed. Also, engine RPMs will be limited to approximately 1800-2000 RPM.