Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the electric signals going to a part that controls fuel flow in the engine. It's like a light switch not working properly to turn on a lamp.
The P2A82 code indicates an issue with the control circuit for the compression stroke valve of the alternative fuel pump. The circuit is reading higher than expected voltage levels.
The P2A82 code is triggered when the Engine Control Module (ECM) detects a high voltage condition in the control circuit of the compression stroke valve for the alternative fuel pump. This valve is responsible for regulating the timing and amount of fuel delivered during the compression stroke of the engine cycle.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Faulty compression stroke valve
• Wiring issues in the control circuit
• Defective Engine Control Module (ECM)
Compression Stroke: The part of the engine cycle where the piston compresses the air-fuel mixture.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the compression stroke valve for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty compression stroke valve.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Toyota Prius
• Honda Civic Hybrid
• Chevrolet Volt
• Regular maintenance checks
• Ensure proper electrical connections
• Use quality fuel
Sensor Issue
• Do not ignore the Check Engine Light.
• Consult a professional mechanic for accurate diagnosis.
• Avoid driving the vehicle until the issue is resolved.
Check with your vehicle manufacturer as some components may be covered under warranty.
This code has been more prevalent in hybrid and alternative fuel vehicles due to the complexity of their fuel systems.
Moderate – It should be addressed soon to avoid potential engine damage.
Driving with a malfunctioning fuel control system can lead to increased emissions and potential safety hazards.
• Engine at operating temperature
• Vehicle stationary
The compression stroke valve is typically located near the fuel pump or within the engine compartment.
Q: Can I drive with a P2A82 code?
A: It's not recommended to drive with this code active as it can lead to further engine issues.
Q: How can I reset the P2A82 code?
A: You can reset the code using an OBD-II scanner, but it's important to fix the underlying issue first.
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