Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with a valve that helps control fuel flow in cars that use alternative fuels, like electric or hybrid cars. It's like a switch that isn't working right.
The P2A71 code is triggered when the vehicle's engine control module (ECM) detects a performance issue with the hydraulic fuel pump select valve, which is responsible for managing fuel flow in alternative fuel vehicles.
The P2A71 code indicates that the hydraulic fuel pump select valve, which controls the switching and flow of fuel in alternative fuel vehicles, is not operating within the expected range or performance parameters. This can affect the efficiency and operation of the vehicle's fuel system.
• Check Engine Light illuminated
• Reduced fuel efficiency
• Engine performance issues
• Faulty hydraulic fuel pump select valve
• Wiring issues or poor electrical connections
• Malfunctioning ECM or control module
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Inspect the hydraulic fuel pump select valve for damage or wear.
• Check the wiring and connections to the valve.
• Use a diagnostic scanner to read and clear the code, then test drive the vehicle to see if the code returns.
• Replace the faulty hydraulic fuel pump select valve.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the fuel system
• Ensure proper electrical connections
• Use quality fuel and additives
Engine Performance
• Do not ignore the Check Engine Light.
• Consult a professional mechanic for diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with alternative fuel vehicles as they became more prevalent in the market.
Moderate – Should be addressed to prevent further engine performance issues.
Driving with a malfunctioning fuel system component can lead to reduced performance and increased emissions.
• Vehicle at operating temperature
• Engine running under load
The hydraulic fuel pump select valve is typically located near the fuel tank or along the fuel line in alternative fuel vehicles.
Q: Can I drive with a P2A71 code?
A: It's not recommended to drive for extended periods with this code active, as it can affect fuel efficiency and engine performance.
Q: How can I prevent P2A71 from occurring?
A: Regular maintenance and ensuring good electrical connections can help prevent this code.
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