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P124E Chevrolet Code - Cylinder 7 Injector High Control Circuit Shorted to Control Circuit

Quick Answer

The P124E Chevrolet code indicates that there is a short circuit in the control circuit of the fuel injector for cylinder 7. Common causes include Faulty fuel injector for cylinder 7, Wiring harness issues, Faulty engine control module (ECM). 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
P124E Chevrolet indicates Cylinder 7 Injector High Control Circuit Shorted to Control Circuit.
Common causes
Common causes include Faulty fuel injector for cylinder 7, Wiring harness issues, Faulty engine control module (ECM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P124E Chevrolet Description

The P124E Chevrolet code indicates that there is a short circuit in the control circuit of the fuel injector for cylinder 7. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber of the engine. When the control circuit is shorted, it can lead to an incorrect amount of fuel being injected into the cylinder, which can result in poor engine performance, misfires, and potentially engine damage if not addressed promptly.

OBDII Code P124E Chevrolet - Cylinder 7 Injector High Control Circuit Shorted to Control Circuit
P124E Chevrolet Code - Cylinder 7 Injector High Control Circuit Shorted to Control Circuit

Common Causes of P124E Chevrolet

  1. Faulty fuel injector for cylinder 7
  2. Wiring harness issues
  3. Faulty engine control module (ECM)
  4. Corrosion in the connectors
  5. Electrical shorts or open circuits in the control circuit

Symptoms of P124E Chevrolet

  1. Check Engine Light illuminated
  2. Engine misfires or runs rough
  3. Decreased fuel efficiency
  4. Hesitation or lack of power during acceleration
  5. Engine stalling or rough idle

How to Fix P124E Chevrolet

  1. Diagnose the issue using a scan tool to confirm the P124E code and pinpoint the exact cause of the short circuit.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the fuel injector for cylinder 7 to determine if it is faulty. Replace the injector if necessary.
  4. Check the engine control module (ECM) for any signs of damage or malfunction. Replace if required.
  5. Clear the trouble code, reset the ECM, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P124E Chevrolet

The typical repair costs for addressing a P124E Chevrolet code can vary depending on the specific cause of the issue. In general, replacing a fuel injector can cost between $150 to $300 per injector, while diagnosing and repairing wiring harness issues or replacing the engine control module (ECM) can add to the total cost. The total repair cost, including parts and labor, can range from $300 to $800 or more. It is important to consider the specific diagnosis time and labor rates at auto repair shops, which can vary based on location, vehicle make and model, and engine type. Checking with local repair shops for a more accurate estimate is recommended.

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Information for Specific Chevrolet Models

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 P124E Chevrolet Code

1. What does OBDII code P124E mean on a Chevrolet?

Code P124E indicates that the Cylinder 7 Injector High Control Circuit is shorted to the control circuit, causing issues with the fuel injector operation.

2. What are the symptoms of code P124E on a Chevrolet?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, misfires on cylinder 7, and the Check Engine Light being illuminated.

3. What causes code P124E on a Chevrolet?

Common causes include damaged or shorted wiring, a faulty fuel injector in cylinder 7, a malfunctioning injector driver in the engine control module (ECM), or corrosion in the connectors.

4. Can I drive my Chevrolet with code P124E?

It’s not recommended to drive your vehicle for long periods with this code, as it can lead to poor performance and potential damage to the engine.

5. How do I fix the P124E code on my Chevrolet?

Repairs may include inspecting and repairing damaged wiring or connectors, replacing the cylinder 7 fuel injector, or addressing a faulty ECM.

6. How do I diagnose the P124E code on my Chevrolet?

Start by checking the wiring and connectors for cylinder 7’s injector. Use a multimeter to test for shorts or continuity issues and check the injector’s resistance.

7. Can a bad fuel injector cause code P124E?

Yes, a faulty fuel injector in cylinder 7 can cause this code if it creates a short or fails to function properly.

8. Could a weak battery trigger the P124E code?

While unlikely, a weak battery can occasionally contribute to electrical issues, but the primary cause is usually related to the injector circuit itself.

9. How much does it cost to fix code P124E on a Chevrolet?

Repair costs can vary but generally range from $150 to $500, depending on whether wiring repairs or injector replacement is needed.

10. Is code P124E specific to Chevrolet vehicles?

No, while P124E is common on Chevrolets, similar injector circuit codes may appear on other vehicle makes with slight variations in naming.

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