P0268 Chevrolet 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 Chevrolet 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.
Code P0268 Chevrolet Description
What are the Possible Causes of the DTC P0268 Chevrolet?
- 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 Chevrolet?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0268 Chevrolet 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.
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Information for Specific Chevrolet Models
- P0268 2014 Chevrolet Silverado — Cylinder 3 Injector Control Circuit High Voltage
- P0268 2015 Chevrolet Silverado — Cylinder 3 Injector Control Circuit High Voltage
- P0268 2016 Chevrolet Silverado — Cylinder 3 Injector Control Circuit High Voltage
- P0268 2017 Chevrolet Silverado — Cylinder 3 Injector Control Circuit High Voltage
- P0268 2018 Chevrolet Silverado — Cylinder 3 Injector Control Circuit High Voltage
Frequently Asked Questions about P0268 Chevrolet Code
What does the OBDII code P0268 mean on a Chevrolet?
Code P0268 indicates that the fuel injector control circuit for cylinder 3 is experiencing higher-than-expected voltage.
What are the common symptoms of code P0268 on a Chevrolet?
Symptoms include engine misfires, rough idle, reduced performance, poor fuel economy, and the check engine light turning on.
What causes code P0268 on a Chevrolet?
Common causes include a faulty injector for cylinder 3, wiring issues such as short circuits or damaged connectors, or a malfunctioning PCM (Powertrain Control Module).
Can I drive my Chevrolet with code P0268 active?
Driving with code P0268 is not recommended as it can cause further damage to the engine and lead to poor performance.
How is code P0268 diagnosed?
A mechanic will inspect the wiring and connectors for cylinder 3, test the fuel injector’s resistance, and check the PCM for faults.
How do you fix code P0268 on a Chevrolet?
Repairs may include replacing the cylinder 3 fuel injector, repairing or replacing damaged wiring, or reprogramming or replacing the PCM.
What tools are needed to fix code P0268?
Necessary tools may include an OBDII scanner, multimeter, wiring repair tools, and potentially specialty tools for removing the fuel injector.
Could a bad PCM cause code P0268?
Yes, a malfunctioning PCM can send incorrect signals to the injector, leading to high voltage readings for cylinder 3.
How much does it cost to repair code P0268 on a Chevrolet?
Costs vary but typically range from $150 to $500, depending on whether the issue is with the injector, wiring, or PCM.
Can a dirty fuel injector cause code P0268?
While less common, a dirty or clogged injector may cause electrical resistance issues, potentially triggering this code.
Discuss the causes and fixes for P0268 Chevrolet OBDII Code
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