Engine-Codes - Generic - P0068

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

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P0068 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

How is the P0068 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0068 code

Labor: 1.0

The cost to diagnose the P0068 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P0068 Meaning

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.

More Information

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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 SUBARU 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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