P1440 Subaru Code - Fuel Tank Pressure Control System Low Input
Quick Answer
P1440 Subaru indicates Fuel Tank Pressure Control System Low Input. Common causes include Faulty EVAP Purge Control Valve, EVAP Purge Control Valve harness is open or shorted, EVAP Purge Control Valve circuit poor electrical connection. 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
- P1440 Subaru indicates Fuel Tank Pressure Control System Low Input.
- Common causes
- Common causes include Faulty EVAP Purge Control Valve, EVAP Purge Control Valve harness is open or shorted, EVAP Purge Control Valve circuit poor electrical connection.
- 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 P1440 Subaru Description
What are the Possible Causes of the DTC P1440 Subaru?
- Faulty EVAP Purge Control Valve
- EVAP Purge Control Valve harness is open or shorted
- EVAP Purge Control Valve circuit poor electrical connection
How to Fix the DTC P1440 Subaru?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1440 Subaru 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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Frequently Asked Questions about P1440 Subaru Code
1. What are the common symptoms of OBDII code P1440 in a Subaru related to the Fuel Tank Pressure Control System Low Input?
- Common symptoms may include the check engine light illuminating, issues with fuel efficiency, and potential difficulties during refueling.
2. What are some possible causes of OBDII code P1440 in a Subaru indicating a low input in the Fuel Tank Pressure Control System?
- Possible causes can include a faulty fuel tank pressure sensor, a leak in the evaporative emissions system, or issues with the fuel cap not sealing properly.
3. How can a driver diagnose OBDII code P1440 in a Subaru related to the Fuel Tank Pressure Control System Low Input?
- A diagnostic scan tool can be used to retrieve the trouble code and further inspection of the fuel tank pressure sensor, hoses, and emissions system components may be necessary.
4. Are there any DIY repair tips for resolving OBDII code P1440 in a Subaru with a low input in the Fuel Tank Pressure Control System?
- DIY repair tips may include checking and tightening the fuel cap, inspecting and repairing any visible leaks in the evaporation system, or replacing a faulty fuel tank pressure sensor if needed.
5. Is it safe to continue driving a Subaru with OBDII code P1440 indicating a low input in the Fuel Tank Pressure Control System?
- It is generally safe to drive the vehicle for a short period after the code appears, but it is recommended to address the issue promptly to prevent any potential damage to the emissions system.
6. Can a Subaru owner reset the OBDII code P1440 related to the Fuel Tank Pressure Control System Low Input on their own?
- Yes, the code can be cleared using an OBDII scanner or by disconnecting the car battery for a few minutes. However, it is important to address the underlying issue causing the code to prevent it from reoccurring.
7. How much does it typically cost to repair OBDII code P1440 in a Subaru caused by a low input in the Fuel Tank Pressure Control System?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a simple fix like tightening the fuel cap to more complex repairs involving sensor replacements or emission system repairs.
8. Are there any recalls or technical service bulletins related to OBDII code P1440 in Subaru vehicles concerning the Fuel Tank Pressure Control System Low Input?
- Subaru may have issued recalls or technical service bulletins related to this code, so it is advisable to check with the nearest Subaru dealership or visit the manufacturer's website for any relevant information.
9. How can preventive maintenance help in avoiding OBDII code P1440 in a Subaru related to the Fuel Tank Pressure Control System Low Input?
- Regularly inspecting the fuel cap for proper sealing, checking the integrity of the evaporation system components, and following the manufacturer's recommended maintenance schedule can help prevent issues leading to this code.
10. Will OBDII code P1440 in a Subaru with a low input in the Fuel Tank Pressure Control System affect the vehicle's performance?
- While the code itself may not significantly impact performance, ignoring the underlying issue causing the code can potentially lead to decreased fuel efficiency and emissions compliance over time.
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