P0068 - Throttle Position Sensor Inconsistent with the Mass Air Flow Sensor

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Mass Air Flow (MAF) sensor
  • Large vacuum leak
  • Leaking air duct system
  • Mass Air Flow (MAF) poor electrical connection
  • Manifold Absolute Pressure (MAP) poor electrical connection
  • Faulty Manifold Absolute Pressure (MAP) sensor
  • TP sensor not seated properly
  • Faulty Throttle Position (TP) sensor

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of power
  • Engine rough idle

P0068 Description

The Powertrain Control Module (PCM) monitors a vehicle operation rationality check by comparing Throttle Position (TP) to Mass Air Flow (MAF) readings. If during a self-test, the comparison of the TP sensor and MAF sensor readings are not consistent with the calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory.
OBDII Code P0068 - Throttle Position Sensor Inconsistent with the Mass Air Flow Sensor - AutoCodes.com

P0068 Information for specific makes

  • P0068 ACURA Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
  • P0068 BUICK MAP/MAF - Throttle Position Correlation
  • P0068 CADILLAC MAP/MAF - Throttle Position Correlation
  • P0068 CHEVROLET MAP/MAF - Throttle Position Correlation
  • P0068 DODGE Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
  • P0068 FORD Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
  • P0068 GMC MAP/MAF - Throttle Position Correlation
  • P0068 HYUNDAI MAF Sensor/MAP Sensor Correlation
  • P0068 KIA Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
  • P0068 MITSUBISHI Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
  • P0068 PONTIAC MAP/MAF - Throttle Position Correlation
  • P0068 SATURN MAP/MAF - Throttle Position Correlation
  • P0068 VOLKSWAGEN Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
  • P0068 VOLVO Mass Air Flow / Throttle Position Correlation

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