P2147 Code - Cylinder 1 Injector High Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code P2147 indicates an issue with the Cylinder 1 Injector High Control Circuit Low Voltage in the vehicle's fuel injection system. Common causes include Faulty fuel injector, Damaged wiring harness, Malfunctioning fuel injector driver in the engine control module. 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 indicates Cylinder 1 Injector High Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty fuel injector, Damaged wiring harness, Malfunctioning fuel injector driver in the engine control module.
- 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 Description
The diagnostic trouble code P2147 indicates an issue with the Cylinder 1 Injector High Control Circuit Low Voltage in the vehicle's fuel injection system. This code specifically points to a problem with the control circuit that manages the fuel injector for cylinder 1. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber for optimal engine performance. When the control circuit voltage is detected to be low, it can disrupt the fuel delivery process, leading to various performance issues.
Common Causes of P2147
- Faulty fuel injector
- Damaged wiring harness
- Malfunctioning fuel injector driver in the engine control module
- Poor electrical connection
- Corrosion in the injector circuit
Symptoms of P2147
- Engine misfires
- Rough idling
- Decreased fuel efficiency
- Engine stalling
- Check engine light illuminated
How to Fix P2147
- Diagnose the issue using a diagnostic scanner to pinpoint the exact cause of the code.
- Inspect the wiring harness and connectors for any damage or corrosion.
- Test the fuel injector resistance and operation to determine if it is faulty.
- Replace the faulty fuel injector or repair any damaged wiring as needed.
- Clear the trouble code from the engine control module and test drive the vehicle to ensure the issue is resolved.
Cost to Fix P2147
The typical repair costs for addressing a Cylinder 1 Injector High Control Circuit Low Voltage issue can range from $150 to $500, depending on the extent of the problem and the cost of replacement parts. This estimate includes the cost of a new fuel injector, wiring harness repairs, and labor charges. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.
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Code P2147 Information for Specific Makes
- P2147 Buick — Cylinder 1 Injector High Control Circuit Low Voltage
- P2147 Cadillac — Cylinder 1 Injector High Control Circuit Low Voltage
- P2147 Chevrolet — Cylinder 1 Injector High Control Circuit Low Voltage
- P2147 Dodge — Cylinder 1 Injector High Control Circuit Low Voltage
- P2147 GMC — Cylinder 1 Injector High Control Circuit Low Voltage
- P2147 Nissan — Fuel Injector Circuit Low Input
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