AutoCodes – Chevrolet – P0268 2016 Chevrolet Silverado

P0268 2016 Chevrolet Silverado Code - Cylinder 3 Injector Control Circuit High Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. Common causes include Dirty Fuel Injector 3, Faulty Fuel Injector 3, Plugged Fuel Injector 3. 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: P0268 2016 Chevrolet Silverado indicates Cylinder 3 Injector Control Circuit High Voltage.
Common causes: Common causes include Dirty Fuel Injector 3, Faulty Fuel Injector 3, Plugged Fuel Injector 3.
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 225

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 23, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0268 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector control circuit is shorted to voltage for greater than 2 s.

OBDII Code P0268 2016 Chevrolet Silverado - Cylinder 3 Injector Control Circuit High Voltage - AutoCodes.com — P0268 2016 Chevrolet Silverado Code - Cylinder 3 Injector Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0268 2016 Chevrolet Silverado?

Dirty Fuel Injector 3
Faulty Fuel Injector 3
Plugged Fuel Injector 3
Fuel Injector #3 harness is open or shorted
Fuel Injector #3 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0268 2016 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 does this mean?

Code Tech Notes

A clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0268 2016 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 P0268 2016 Chevrolet Silverado code?

Need more information on how to fix the P0268 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P0268 2016 Chevrolet Silverado Code

What does the OBDII code P0268 mean for a 2016 Chevrolet Silverado?

It indicates a high voltage issue in the control circuit of Cylinder 3's fuel injector, which could affect the engine's performance.

What are the common symptoms of P0268 in a 2016 Chevrolet Silverado?

Symptoms may include rough idling, decreased fuel efficiency, engine misfires, hesitation during acceleration, and the check engine light turning on.

What causes the P0268 code in a 2016 Chevrolet Silverado?

Possible causes include wiring issues, a faulty injector, a short circuit, a damaged control module, or excessive resistance in the injector circuit.

Can I drive my 2016 Chevrolet Silverado with the P0268 code active?

While the vehicle may still run, driving with this code can lead to further engine damage and reduced performance. It's best to address the issue promptly.

How do I diagnose the P0268 code in my 2016 Chevrolet Silverado?

Start by inspecting the wiring and connectors for Cylinder 3â€™s injector for damage or corrosion. Use a multimeter to test for proper voltage and resistance in the circuit.

What repairs are typically needed to fix the P0268 code?

Repairs may include replacing the Cylinder 3 injector, repairing or replacing damaged wiring, or addressing issues with the powertrain control module (PCM).

How can I prevent the P0268 code from recurring in my 2016 Chevrolet Silverado?

Regular maintenance, including inspecting wiring and connectors for corrosion or damage, can help prevent injector circuit issues.

What tools are needed to troubleshoot the P0268 code?

Basic tools include a multimeter for electrical testing, an OBDII scanner for diagnostics, and potentially a wiring diagram for the injector circuit.

What is the estimated cost of repairing the P0268 code?

Costs depend on the specific issue, ranging from $50 for minor wiring repairs to several hundred dollars if the injector or PCM needs replacement.

Can a dirty fuel injector cause the P0268 code?

While a dirty injector can cause performance issues, the P0268 code specifically points to an electrical problem in the injector circuit rather than a clog.