AutoCodes – Chevrolet – P0280 2014 Chevrolet Silverado

P0280 2014 Chevrolet Silverado Code - Cylinder 7 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 7, Faulty Fuel Injector 7, Plugged Fuel Injector 7. 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: P0280 2014 Chevrolet Silverado indicates Cylinder 7 Injector Control Circuit High Voltage.
Common causes: Common causes include Dirty Fuel Injector 7, Faulty Fuel Injector 7, Plugged Fuel Injector 7.
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 236

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 P0280 2014 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 P0280 2014 Chevrolet Silverado - Cylinder 7 Injector Control Circuit High Voltage - AutoCodes.com — P0280 2014 Chevrolet Silverado Code - Cylinder 7 Injector Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0280 2014 Chevrolet Silverado?

Dirty Fuel Injector 7
Faulty Fuel Injector 7
Plugged Fuel Injector 7
Fuel injector 7 harness is open or shorted
Fuel injector 7 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0280 2014 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 P0280 2014 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 P0280 2014 Chevrolet Silverado code?

Need more information on how to fix the P0280 2014 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 P0280 2014 Chevrolet Silverado Code

What does the OBDII code P0280 mean on a 2014 Chevrolet Silverado?

The P0280 code indicates a high voltage issue in the Cylinder 7 Injector Control Circuit, meaning the injector may not be operating correctly.

What are the common symptoms of code P0280 in a 2014 Chevrolet Silverado?

Symptoms include rough idling, poor acceleration, misfire in cylinder 7, reduced fuel efficiency, and the Check Engine Light being illuminated.

What causes the P0280 code in a 2014 Chevrolet Silverado?

Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning PCM, or high resistance in the injector circuit.

Can I drive my 2014 Chevrolet Silverado with the P0280 code?

Driving with this code is not recommended as it can lead to reduced engine performance, potential engine damage, and higher emissions.

How do I diagnose the P0280 code in a 2014 Chevrolet Silverado?

Diagnosing involves using a scan tool to confirm the code, inspecting the wiring and connectors for damage, testing the resistance of the cylinder 7 injector, and checking the PCM.

What tools are needed to troubleshoot the P0280 code?

Youâ€™ll need an OBDII scan tool, a multimeter to check resistance, and possibly a noid light to test the injector's electrical signal.

How do I fix the P0280 code on a 2014 Chevrolet Silverado?

Repairs may include replacing the cylinder 7 fuel injector, repairing or replacing damaged wiring or connectors, cleaning the injector, or reprogramming/replacing the PCM if necessary.

How much does it cost to repair the P0280 code?

Repair costs vary but typically range from $200 to $600 depending on whether the injector, wiring, or PCM needs replacement.

Can a dirty fuel injector cause the P0280 code?

Yes, a dirty or clogged injector can disrupt the electrical signals, leading to the P0280 code.

How do I prevent the P0280 code from occurring again?

Regular maintenance, including fuel injector cleaning, inspecting wiring for damage, and addressing issues promptly, can help prevent this code from recurring.