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lostrider, ASE Certified Technician
Category: Car
Satisfied Customers: 3075
Experience:  ASE Master Technician, L1 Certs, Ford Senior Master Technician with 22Years exp.
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What causes code po326 on 1997 Kia Sportage 2.0

Customer Question

What causes code po326 on 1997 Kia Sportage 2.0
Submitted: 8 years ago.
Category: Car
Expert:  lostrider replied 8 years ago.
The P0326 is a code for a bias knock sensor, either and open circuit from the sensor to the ECM or a bad sensor, here is the trouble code chart for the code.graphic


Right Side of Engine (Next to Oil Filter)


lostrider and 5 other Car Specialists are ready to help you
Customer: replied 8 years ago.
Hi ,THANK YOU FOR THE FAST ANSWER. Is there a way to test the sensor?
Expert:  lostrider replied 8 years ago.
yep, just follow the test and that should lead you to the problem.
Testing and Inspection



  1. With the knock sensor connector still connected, connect a voltmeter between terminal 3 (YEL/GRN) and ground.
  2. Turn the ignition switch ON.
  3. Tap the engine crossmember bracket with a wrench.
  4. Verify that a voltage spike (less than 1V) is output from the knock sensor.
  5. If no voltage spike is observed, replace the knock sensor.