P2147 2016 GMC Sierra Code - Cylinder 1 Injector High Control Circuit Low Voltage
Quick Answer
The P2147 code on a 2016 GMC Sierra indicates an issue with the Cylinder 1 Injector High Control Circuit Low Voltage. Common causes include Faulty fuel injector, Wiring issues in the control circuit, Malfunctioning PCM. 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
- P2147 2016 GMC Sierra indicates Cylinder 1 Injector High Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty fuel injector, Wiring issues in the control circuit, Malfunctioning PCM.
- 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 P2147 2016 GMC Sierra Description
The P2147 code on a 2016 GMC Sierra indicates an issue with the Cylinder 1 Injector High Control Circuit Low Voltage. This means that the powertrain control module (PCM) has detected a lower than expected voltage in the control circuit for the fuel injector in cylinder 1. The fuel injector is responsible for delivering the correct amount of fuel to the cylinder for combustion. When the voltage in the control circuit is too low, it can lead to improper fuel delivery, affecting the engine's performance.
Common Causes of P2147 2016 GMC Sierra
- Faulty fuel injector
- Wiring issues in the control circuit
- Malfunctioning PCM
- Poor electrical connection
- Corrosion or damage to connectors
Symptoms of P2147 2016 GMC Sierra
- Engine misfires
- Rough idling
- Reduced fuel efficiency
- Engine stalling
- Check Engine Light illuminated
How to Fix P2147 2016 GMC Sierra
- Begin by conducting a visual inspection of the wiring and connectors in the control circuit for cylinder 1.
- Test the fuel injector in cylinder 1 to determine if it is functioning properly.
- Check the voltage in the control circuit to ensure it is within the manufacturer's specifications.
- If the issue persists, replace the faulty fuel injector or repair any damaged wiring or connectors.
- Clear the diagnostic trouble codes from the PCM and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2147 2016 GMC Sierra
The typical repair costs for addressing a P2147 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a fuel injector can range from $150 to $300, while repairing wiring or connectors may cost between $100 and $200. Labor costs at auto repair shops typically range from $80 to $150 per hour. It's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.
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Frequently Asked Questions about P2147 2016 GMC Sierra Code
1. What does the OBDII code P2147 mean on a 2016 GMC Sierra?
The P2147 code indicates a problem with the Cylinder 1 Injector High Control Circuit, reporting low voltage.
2. What are common symptoms of a P2147 code on a 2016 GMC Sierra?
Symptoms may include rough idling, reduced engine performance, poor fuel economy, misfires, or the engine running in limp mode.
3. What causes the P2147 code to appear on a 2016 GMC Sierra?
Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a failed injector control module, or a low system voltage issue.
4. Can I drive my 2016 GMC Sierra with a P2147 code?
Driving with a P2147 code is not recommended, as it can lead to reduced engine performance and potential damage to other components.
5. How do I diagnose a P2147 code on a 2016 GMC Sierra?
Diagnosis involves inspecting the wiring and connectors for damage, testing the injector control circuit for proper voltage, and checking the fuel injector and control module for faults.
6. How much does it cost to fix a P2147 code on a 2016 GMC Sierra?
Repair costs vary but may range from $100 for simple wiring repairs to $500 or more if the fuel injector or control module needs replacement.
7. Can a bad battery cause the P2147 code on a 2016 GMC Sierra?
Yes, a weak or failing battery can cause low voltage in the injector control circuit, triggering the P2147 code.
8. Will clearing the P2147 code fix the problem on a 2016 GMC Sierra?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
9. What tools are needed to troubleshoot the P2147 code on a 2016 GMC Sierra?
Tools include an OBDII scanner, a multimeter for voltage testing, and possibly a test light for checking the injector circuit.
10. Can a dirty fuel injector cause the P2147 code on a 2016 GMC Sierra?
A dirty injector is unlikely to directly cause this code, but it could lead to performance issues that may contribute to injector circuit faults.
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