Causes and Fixes P0068 Code: MAP/MAF – Throttle Position Correlation

How to fix a P0068 engine code: MAP/MAF – Throttle Position Correlation The MAP (Manifold Absolute Pressure) sensor measures engine manifold pressure. A MAF (Mass Air Flow Sensor) measures all airflow into the engine. Depending on the vehicle there can be variations on which sensors are used. For example, some vehicles do not use a MAP sensor but only use a MAF sensor, while some vehicles have a MAF and MAP sensor. How To Test MAF Sensor Video Possible Causes of a P0068 Code: Faulty or Dirty Throttle Body Bad MAP (Manifold Absolute Pressure) Sensor Bad Intake Air Temp Sensor Bad or Dirty MAF Sensor (Mass Airflow Sensor) Vacuum leak Bad Throttle Position Sensor