P1268 Code - Cylinder #8 High To Low Side Short
Quick Answer
When a vehicle's engine control module (ECM) detects a P1268 trouble code, it indicates that there is a short circuit in the wiring related to Cylinder #8's fuel injector. Common causes include Damaged wiring: Physical damage to the wiring harness connected to the fuel injector can cause a short circuit, Faulty fuel injector: A malfunctioning fuel injector in Cylinder #8 can lead to electrical issues, ECM malfunction: An issue with the engine control module can disrupt the communication between the fuel injector and the 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
- P1268 indicates Cylinder #8 High To Low Side Short.
- Common causes
- Common causes include Damaged wiring: Physical damage to the wiring harness connected to the fuel injector can cause a short circuit, Faulty fuel injector: A malfunctioning fuel injector in Cylinder #8 can lead to electrical issues, ECM malfunction: An issue with the engine control module can disrupt the communication between the fuel injector and the 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1268 Description
When a vehicle's engine control module (ECM) detects a P1268 trouble code, it indicates that there is a short circuit in the wiring related to Cylinder #8's fuel injector. This means that there is an electrical issue between the high side and low side of the fuel injector circuit in Cylinder #8. This can lead to a disruption in the fuel injection process, causing performance issues in the affected cylinder.
Common Causes of P1268
- Damaged wiring: Physical damage to the wiring harness connected to the fuel injector can cause a short circuit.
- Faulty fuel injector: A malfunctioning fuel injector in Cylinder #8 can lead to electrical issues.
- ECM malfunction: An issue with the engine control module can disrupt the communication between the fuel injector and the ECM.
- Corrosion: Corrosion or moisture in the electrical connections can also cause a short circuit.
Symptoms of P1268
- Rough idle: The engine may idle roughly or inconsistently due to the disrupted fuel injection process.
- Misfires: Cylinder #8 may experience misfires, leading to a noticeable loss of power and performance.
- Reduced fuel efficiency: A short circuit in the fuel injector circuit can result in poor fuel economy.
- Check engine light: The ECM will trigger the check engine light to alert the driver of a potential issue with Cylinder #8.
How to Fix P1268
- Diagnose the issue: Use a diagnostic scanner to pinpoint the exact location of the short circuit in the fuel injector circuit.
- Inspect wiring: Check the wiring harness for any signs of damage or corrosion and repair or replace as needed.
- Test fuel injector: Test the fuel injector in Cylinder #8 to ensure it is functioning properly.
- Replace components: Replace any faulty components, such as the fuel injector or ECM, if necessary.
- Clear codes: Clear the trouble codes from the ECM memory and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1268
The cost of repairing a P1268 trouble code can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $100 to $300, while the labor cost can be between $150 and $300. Overall, the total cost of addressing this issue can range from $250 to $600. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned earlier.
Need more information about the P1268 code?
Need more information on how to fix the P1268 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1268 code diagnosed by a professional: Find a repair shop in your area
Code P1268 Information for Specific Makes
- P1268 Audi — Injector 3 Control Limit Not Reached
- P1268 Ford — Cylinder #8 High To Low Side Short
- P1268 Volkswagen — Injector 3 Control Limit Not Reached
Frequently Asked Questions about P1268 Code
No Frequently Asked Questions about P1268 Code found.
Discuss the causes and fixes for P1268 OBDII Code
Code P1268 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.