P1420 Subaru Code - Fuel Tank Pressure Control Solenoid Valve Circuit High
Quick Answer
The P1420 Subaru code indicates a problem with the Fuel Tank Pressure Control Solenoid Valve Circuit being too high. Common causes include Faulty Fuel Tank Pressure Control Solenoid Valve, Wiring issues or a short circuit in the solenoid valve circuit, Corrosion or damage to electrical connectors. 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
- P1420 Subaru indicates Fuel Tank Pressure Control Solenoid Valve Circuit High.
- Common causes
- Common causes include Faulty Fuel Tank Pressure Control Solenoid Valve, Wiring issues or a short circuit in the solenoid valve circuit, Corrosion or damage to electrical connectors.
- 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 P1420 Subaru Description
The P1420 Subaru code indicates a problem with the Fuel Tank Pressure Control Solenoid Valve Circuit being too high. This valve is responsible for controlling the pressure in the fuel tank, ensuring that it remains within the optimal range for the vehicle's operation. When the circuit registers a high voltage, it means that there is an issue with the solenoid valve not functioning properly, which can lead to various performance issues.
Common Causes of P1420 Subaru
- Faulty Fuel Tank Pressure Control Solenoid Valve.
- Wiring issues or a short circuit in the solenoid valve circuit.
- Corrosion or damage to electrical connectors.
- Vacuum leaks in the EVAP system.
- Issues with the fuel tank pressure sensor.
Symptoms of P1420 Subaru
- Check Engine light is illuminated on the dashboard.
- Poor fuel efficiency.
- Rough idling or stalling.
- Difficulty starting the engine.
- Strong fuel odor near the vehicle.
How to Fix P1420 Subaru
- Begin by diagnosing the specific cause of the high voltage in the solenoid valve circuit using a diagnostic scanner.
- Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
- Test the Fuel Tank Pressure Control Solenoid Valve for proper operation. Replace if faulty.
- Check for any vacuum leaks in the EVAP system and repair as needed.
- Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1420 Subaru
The typical repair costs for addressing a P1420 Subaru code can range from $150 to $400, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check local rates for a more accurate estimate.
Need more information about the P1420 Subaru code?
Need more information on how to fix the P1420 Subaru code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1420 Subaru code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1420 Subaru Code
1. What does the OBDII code P1420 mean on a Subaru?
P1420 indicates an issue with the Fuel Tank Pressure Control Solenoid Valve Circuit, specifically a high voltage problem.
2. What are the common symptoms of code P1420 on a Subaru?
Symptoms may include the check engine light turning on, possible fuel odor near the vehicle, reduced fuel efficiency, or difficulty passing emissions tests.
3. What causes the P1420 code to appear on a Subaru?
Common causes include a faulty fuel tank pressure control solenoid valve, damaged wiring or connectors in the circuit, or a malfunctioning engine control module (ECM).
4. Can I drive my Subaru with the P1420 code?
While the vehicle may still be drivable, prolonged use with this code could result in increased emissions and potential damage to the emissions system.
5. How do I diagnose the P1420 code in my Subaru?
Start by inspecting the wiring and connectors to the fuel tank pressure control solenoid valve for damage or corrosion. Use a multimeter to check for voltage and continuity in the circuit.
6. How much does it cost to fix a P1420 code on a Subaru?
The cost can vary, but replacing the fuel tank pressure control solenoid valve typically ranges from $100 to $300, including parts and labor.
7. Can a loose gas cap cause the P1420 code?
While a loose gas cap is unlikely to directly cause the P1420 code, it can trigger other emissions-related codes. Always check the gas cap as part of your diagnosis.
8. How can I fix the P1420 code on my Subaru?
Repairs may include replacing the fuel tank pressure control solenoid valve, repairing or replacing damaged wiring, or, in rare cases, reprogramming or replacing the ECM.
9. Will clearing the P1420 code fix the problem permanently?
Clearing the code will turn off the check engine light temporarily, but if the underlying issue isn’t resolved, the code will likely return.
10. Can a bad ECM cause the P1420 code?
Yes, though it’s less common. If all other components check out, a faulty ECM could be the cause of the P1420 code.
Discuss the causes and fixes for P1420 Subaru OBDII Code
-
Hi, i got a Subaru Legacy 2010, is this code applies i just got it. Or is it more the general P1420 for the catalys outake failure?
-
The problem is more than likely the Faulty Fuel Tank Pressure Control Solenoid Valve
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.