Engine-Codes - Pontiac - P0068 Pontiac

P0068 Pontiac Code - MAP/MAF - Throttle Position Correlation

- Code Popularity: 17,830 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P0068 Pontiac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Air leak between the MAF sensor and throttle body
  • Dirty Throttle body or Mass Air Flow (MAF) sensor
  • Throttle Position (TP) sensor not seated properly
  • Faulty Throttle Position (TP) sensor
  • Faulty Mass Air Flow (MAF) sensor
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How to Fix the DTC P0068 Pontiac?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0068 Pontiac code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

If the PCM detects that the difference between the actual air flow (MAF) and the speed density calculated air flow is greater than expected, DTC P0068 sets.

What are Code Possible Symptoms?

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

What Does the P0068 Pontiac Code Mean?

The Powertrain Control Module (PCM) uses the Throttle Position (TP), Barometric Pressure (BARO), Intake Air Temperature (IAT), and engine RPM in order to calculate the predicted mass airflow rate. The PCM compares the predicted Mass Air Flow (MAF) value to the actual mass airflow value and the speed density calculation in order to verify the proper throttle operation.

P0068 Pontiac Code - MAP/MAF - Throttle Position Correlation

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