P1400 Subaru Code - Fuel Tank Pressure Control Solenoid Low Input
Quick Answer
P1400 Subaru indicates Fuel Tank Pressure Control Solenoid Low Input. Common causes include Faulty Fuel Tank Pressure Control Solenoid, Fuel Tank Pressure Control Solenoid harness is open or shorted, Fuel Tank Pressure Control Solenoid circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P1400 Subaru indicates Fuel Tank Pressure Control Solenoid Low Input.
- Common causes
- Common causes include Faulty Fuel Tank Pressure Control Solenoid, Fuel Tank Pressure Control Solenoid harness is open or shorted, Fuel Tank Pressure Control Solenoid circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P1400 Subaru Description
What are the Possible Causes of the DTC P1400 Subaru?
- Faulty Fuel Tank Pressure Control Solenoid
- Fuel Tank Pressure Control Solenoid harness is open or shorted
- Fuel Tank Pressure Control Solenoid circuit poor electrical connection
How to Fix the DTC P1400 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 P1400 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 P1400 Subaru Code
1. What does the OBDII code P1400 mean on a Subaru?
P1400 refers to a "Fuel Tank Pressure Control Solenoid Low Input," indicating an issue with the solenoid responsible for regulating fuel tank pressure.
2. What are the common symptoms of code P1400 in a Subaru?
Symptoms may include a check engine light, poor fuel efficiency, difficulty starting the vehicle, or a noticeable fuel odor.
3. What causes the P1400 code in a Subaru?
Common causes include a faulty fuel tank pressure control solenoid, damaged wiring or connectors, or issues with the engine control module (ECM).
4. Can a loose gas cap trigger the P1400 code?
No, a loose gas cap typically triggers an evaporative system leak code (e.g., P0456). P1400 specifically relates to the pressure control solenoid.
5. How do you diagnose a P1400 code on a Subaru?
Diagnosis involves checking the fuel tank pressure control solenoid, inspecting wiring and connectors for damage, and using a multimeter to verify proper voltage and continuity.
6. Can I drive my Subaru with a P1400 code?
While the car may still be drivable, it’s best to address the issue promptly to avoid potential emissions-related problems and performance issues.
7. How is the P1400 code repaired on a Subaru?
Repairs may include replacing the fuel tank pressure control solenoid, repairing damaged wiring, or updating/reprogramming the ECM if necessary.
8. What tools are needed to fix a P1400 code?
You’ll need an OBDII scanner, a multimeter, and basic tools for accessing and replacing components in the fuel tank system.
9. Is the P1400 code related to the EVAP system?
Yes, the P1400 code is connected to the EVAP system, as the fuel tank pressure control solenoid is part of the system's pressure regulation.
10. How much does it cost to fix a P1400 code on a Subaru?
Repair costs vary but typically range from $100 to $300, depending on whether the solenoid, wiring, or ECM requires attention.
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