P146D Chevrolet Code - EVAP Purge System Pressure Sensor Circuit Low Voltage
Quick Answer
The P146D code for Chevrolet indicates a problem with the EVAP (Evaporative Emission Control System) Purge System Pressure Sensor Circuit, specifically detecting low voltage. Common causes include Faulty EVAP Purge System Pressure Sensor, Wiring or connection issues in the circuit, EVAP system leaks. 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
- P146D Chevrolet indicates EVAP Purge System Pressure Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty EVAP Purge System Pressure Sensor, Wiring or connection issues in the circuit, EVAP system leaks.
- 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 P146D Chevrolet Description
The P146D code for Chevrolet indicates a problem with the EVAP (Evaporative Emission Control System) Purge System Pressure Sensor Circuit, specifically detecting low voltage. The EVAP system is designed to capture and store fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The Purge System Pressure Sensor measures the pressure in the system and sends this information to the vehicle's engine control module (ECM) for proper fuel vapor management.
Common Causes of P146D Chevrolet
- Faulty EVAP Purge System Pressure Sensor
- Wiring or connection issues in the circuit
- EVAP system leaks
- ECM malfunction
- Vacuum leaks in the system
Symptoms of P146D Chevrolet
- Check engine light is illuminated
- Decreased fuel efficiency
- Rough idling or stalling
- Difficulty starting the vehicle
- Increased emissions
How to Fix P146D Chevrolet
- Use a diagnostic scanner to retrieve the trouble code and identify the specific issue.
- Inspect the EVAP Purge System Pressure Sensor and its wiring for any damage or corrosion. Replace as necessary.
- Check for any leaks in the EVAP system and repair them.
- Test the ECM to ensure it is functioning properly.
- Clear the trouble code and reset the ECM to see if the issue is resolved.
Cost to Fix P146D Chevrolet
The cost of repairing a P146D code on a Chevrolet can vary depending on the specific cause of the issue. Parts such as a new EVAP Purge System Pressure Sensor can range from $50 to $150, while labor costs can vary between $100 to $200. Overall, the total repair cost could range from $150 to $350. However, it's important to keep in mind that prices may vary based on location and the specific shop performing the repairs. It's advisable to obtain multiple quotes to ensure a fair price.
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