AutoCodes – Buick – P0068 Buick

P0068 Buick Code - Throttle Body Air Flow Performance

Quick Answer

The Engine Control Module (ECM) compares actual air flow based on Throttle Position (TP) to a calculated air flow based on the Manifold Absolute Pressure (MAP) sensor, and Mass Air Flow (MAF). Common causes include Air leak between the Mass Air Flow (MAF) sensor and Throttle Body, Restricted Air Filter, Dirty Throttle Body. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0068 Buick indicates Throttle Body Air Flow Performance.
Common causes
Common causes include Air leak between the Mass Air Flow (MAF) sensor and Throttle Body, Restricted Air Filter, Dirty Throttle Body.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 12,228
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 16, 2022
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Code P0068 Buick Description

The Engine Control Module (ECM) compares actual air flow based on Throttle Position (TP) to a calculated air flow based on the Manifold Absolute Pressure (MAP) sensor, and Mass Air Flow (MAF). The Diagnostic Trouble Code (DTC) will be set if the ECM detects that the actual air flow rate is greater than the calculated air flow.
OBDII Code P0068 Buick - Throttle Body Air Flow Performance - AutoCodes.com
P0068 Buick Code - Throttle Body Air Flow Performance

What are the Possible Causes of the DTC P0068 Buick?

  • Air leak between the Mass Air Flow (MAF) sensor and Throttle Body
  • Restricted Air Filter
  • Dirty Throttle Body
  • Dirty Mass Air Flow sensor
  • Faulty Mass Air Flow sensor
  • Faulty Manifold Absolute Pressure (MAP)
  • Faulty Throttle Body

How to Fix the DTC P0068 Buick?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0068 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0068 Buick code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0068 Buick Code

No Frequently Asked Questions about P0068 Buick Code found.

Discuss the causes and fixes for P0068 Buick OBDII Code

  • i need help, My Mercedes Benz Class C 2012 Check Engine coming ON, i replace all sensors related and the CEL keep ON what should i do.. Please help me

    The OBD2
    code P0068

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