Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a high

Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a low

Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a low

Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected an improper

Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected an improper

Possible causes – Faulty Intake Valve Control Solenoid Bank 1– Intake Valve Control Solenoid Circuit Bank 1 harness is open or shorted– Intake Valve Control Solenoid Circuit Bank 1 circuit poor electrical connection When is the code detected? An improper

Possible causes – Faulty Intake Valve Control Solenoid Bank 1– Intake Valve Control Solenoid Circuit Bank 1 harness is open or shorted– Intake Valve Control Solenoid Circuit Bank 1 circuit poor electrical connection When is the code detected? An improper

Possible causes – Faulty Intake Valve Control Solenoid Bank 1– Intake Valve Control Solenoid Circuit Bank 1 harness is open or shorted– Intake Valve Control Solenoid Circuit Bank 1 circuit poor electrical connection When is the code detected? An improper

Possible causes – Faulty Intake Valve Control Solenoid Valve– Intake Valve Control Solenoid Circuit harness is open or shorted– Intake Valve Control Solenoid Circuit circuit poor electrical connection When is the code detected? An improper voltage is sent to the

Possible causes – Faulty Intake Valve Control Solenoid Valve– Intake Valve Control Solenoid Circuit harness is open or shorted– Intake Valve Control Solenoid Circuit circuit poor electrical connection When is the code detected? An improper voltage is sent to the

Possible causes – Faulty Intake Valve Control Solenoid Valve– Intake Valve Control Solenoid Circuit harness is open or shorted– Intake Valve Control Solenoid Circuit circuit poor electrical connection When is the code detected? An improper voltage is sent to the

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0325 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0325 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0326 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0327 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0328 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0330 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0331 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0332 code means that the Knock Sensor is not working properly. Problems with

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Engine Control Module (ECM) Tech notes The P0333 code means that the Knock Sensor is not working properly. Problems with