P0068

2017-10-10

Description:

  • The fault code P0068 indicates a potential issue with the correlation between the manifold absolute pressure (MAP) sensor, mass airflow (MAF) sensor, and throttle position sensor (TPS). This fault code suggests a discrepancy in the input signals from these sensors, which can affect engine performance.

Possible Symptoms:

  • Illuminated Check Engine Light

  • Engine hesitation or surging

  • Reduced engine power

  • Poor acceleration

  • Rough idling or stalling

  • Potential misfires

  • Decreased fuel efficiency

Possible Causes:

  • Malfunctioning MAP sensor

  • Malfunctioning MAF sensor

  • Malfunctioning TPS

  • Intake air leaks or restrictions

  • Electrical connection issues between sensors and the engine control module (ECM)

  • Faulty ECM

Related Parts:

  • Throttle Position Sensor: Throttle position sensor generally denotes the position of the accelerator pedal. Problems lead to poor acceleration

Possible Solutions:

  • Inspect and evaluate the functionality of the MAP sensor, MAF sensor, and TPS

  • Clean or replace the MAP sensor, MAF sensor, or TPS if they are faulty

  • Check for any intake air leaks or restrictions and repair as necessary

  • Inspect and ensure proper electrical connections between the sensors and the ECM

  • If required, test and replace the ECM

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