AutoCodes – Chevrolet – P0068 2015 Chevrolet Silverado

P0068 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado 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 1,689

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 16, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P0068 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado - Throttle Body Air Flow Performance - AutoCodes.com — P0068 2015 Chevrolet Silverado Code - Throttle Body Air Flow Performance

What does this mean?

What are the Possible Causes of the DTC P0068 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado Code

What does the OBDII code P0068 mean for a 2015 Chevrolet Silverado?

The P0068 code indicates a problem with the throttle body air flow performance, suggesting that the engine control module (ECM) has detected a discrepancy between the throttle position and the mass air flow (MAF) readings.

What are common symptoms of the P0068 code in a Chevrolet Silverado?

Common symptoms include reduced engine power, poor acceleration, an illuminated check engine light, and possible stalling or hesitation during acceleration.

What could cause the P0068 code to trigger?

Possible causes include a faulty throttle body, a malfunctioning mass air flow sensor, vacuum leaks, wiring issues, or a dirty throttle body that is not opening or closing properly.

How can I diagnose the P0068 code?

To diagnose the P0068 code, start by visually inspecting the throttle body and related sensors for damage or dirt. Use a scan tool to check for other codes, monitor live data for throttle position and MAF readings, and look for possible vacuum leaks.

What repairs are typically needed to fix the P0068 code?

Common repairs may involve cleaning or replacing the throttle body, replacing a faulty mass air flow sensor, fixing vacuum leaks, or repairing damaged wiring or connectors.

Can I drive my Chevrolet Silverado with the P0068 code?

While it might be possible to drive the vehicle, it's not recommended as it could lead to reduced engine performance and potential further damage if the underlying issue is not addressed.

Is the P0068 code serious?

Yes, the P0068 code can indicate a serious issue affecting engine performance and drivability, so it should be diagnosed and repaired as soon as possible.

How much does it typically cost to repair the issues related to the P0068 code?

Repair costs can vary widely depending on the specific cause, but they usually range from $100 to $500, including parts and labor, particularly if it involves cleaning or replacing the throttle body or MAF sensor.

Will clearing the P0068 code fix the problem?

Clearing the code may temporarily turn off the check engine light, but if the underlying issue is not resolved, the code will likely reappear after driving the vehicle.